Monday, July 20, 2009

G-SPOT Where is it



Women can orgasm several different ways, via clitoral, vaginal, and of course the G-Spot, the latter can give her a massively satisfying orgasm if stimulated correctly.

Here we will look at how to find it and give your partner immense pleasure once you do!

Where is the G Spot?

The G-Spot is the area to target for maximum sexual arousal.

You will be able to help give added pleasure and a mind blowing climax to your partner if you can locate and stimulate it.

The G-Spot is essentially a bean shaped area of nerve tissue, located about halfway between the back of the pubic bone and the top of a women’s cervix.

The size and location of the G-Spot will vary between women, but it usually lies about 1.5” to 3” inside the vagina.

This area inside the vagina has a different texture; it’s ridged, not smooth like the rest of the vagina, and when
aroused has a spongy feel.

The G-Spot is not easily located. Sometimes even women have a hard time finding it and some don’t even believe it exists, but it does.

All you need to do is to locate it and arouse it and with a little trial and error between you and your partner you can.

Locating the G Spot

To explore and find the G spot, have your partner lie down, knees bent and feet flat on the floor or bed, with a pillow under her buttocks for comfort.

Insert your fingers into her vagina towards her navel. This will be between 1.5 – 3” inches inside the vagina to find the exact spot.

Press with the fingers against the front wall of the vagina.
As it's surrounded by tissue and deep in the vaginal wall, you will need to apply a little pressure. When you finally hit the right spot, it will swell the same way a penis does.

Slide your fingers from side to side. Have your partner tell you when you hit the right place and you she will know, as you will see the reaction when you hit it!

G Spot Technique

When you have found it move your fingers in even circles all around the inside of the vagina walls.

It generally feels best for her if you keep consistent, firm pressure along the entire length of the vaginal walls and use a steady rotational rhythm.

Stop rotating your fingers and rest your fingertips on the ridged area of the G Spot. Then move the fingers in and out and do rotational movements to keep hitting the spot.

Finding a rhythm is what you are looking for here; keep moving the fingers in and out and around constantly hitting the G Spot.

You can give your partner even more pleasure by licking her clitoris and stimulating her G-Spot at the same time, to give her an amazing climax.

Stimulating the G Spot to the level where it will ejaculate requires three components:

1.Time: Needs to be taken to work your partner up

2.Gentle attention: Listen to your partner and find out what gives her pleasure.

3.Tapping: Keep constantly tapping the G-spot while you are moving your fingers.

Penis stimulation

Penises curve and the ones that curve upwards are most likely to hit the G territory. However if your penis curves to the left or the right, all is not lost,There are options!

If your penis curves to the left, right or to the south, you can position yourself in such a way that your penis hits the spot i.e you need to be in a position where your penis points north.

For example, if your penis curves to the side. You lie horizontally, she lies vertically and you gain the same impact and will be able to hit her G Spot.

If your penis curves downwards, place her on top of you but facing the other way, you will see her buttocks and then move to hit the G spot.

Other methods of stimulation

There are a number of adult toys such as vibrators etc that are designed to hit and stimulate the G Spot and the huge variety out there means there is one for every women.

Finally…

The G Spot is there in women all you have to do is find it and stimulate it to give your partner huge pleasure.

There is a lot of mystique related to the spot but to find the G spot and give your partner pleasure is really all about communication.

She will be able to guide you, all you need to do is follow her instructions have patience and find out what’s right for her.

If you do, you will add another dimension to your relationship and your partner will be very grateful for your effort!

For more information

On the G spot other sexual techniques sexual health and much more please visit:

http://www.net-planet.org/sexhealth.html



Source

Thursday, July 9, 2009

MALE GENITALIA DISEASE

There are many different types of diseases that can affect the genitals. They can be classified by whether they are acquired (one caught it or developed the problem after birth) or congenital (one was born with it). The acquired diseases can be further classified by whether they are due to problems with inflammation (infection), cancer, blood flow, or some combination of problems leading to dysfunction.

ACQUIRED ABNORMALITIES
Perhaps the most common disease affecting men is sexual dysfunction. This is the failure to achieve adequate erection, ejaculation, or both. Men with sexual dysfunction may complain of loss of sexual desire (libido), difficulty or inability to initiate or maintain an erection (impotence), failure of ejaculation, premature ejaculation, or an inability to achieve an orgasm.

Other than sexual dysfunction, some of the most common acquired diseases are infections caught from a partner during sexual contact. Diseases such as chlamydia, herpes, genital warts, and HIV/AIDS are just some of the more common sexually transmitted diseases. (The photo shows the milky penile discharge of man with gonorrhea.) A detailed look at the major sexually transmitted diseases is beyond the scope of this guide, but is currently available in our Sexually Transmitted Disease (STD) Online Guide. The guide shows photographs and gives detailed information on detecting, curing, and preventing common sexually transmitted diseases. With the exception of sexual abstinence, the regular and correct use of condoms is the best way to avoid the sexually transmitted diseases.

A non-sexually transmitted disease causing inflammation and rarely sterility is mumps. Though the mumps virus commonly causes only swelling of the salivary gland (parotitis), about 10% of men will get swelling of the testicle (mumps orchitis). Luckily, one of the childhood vaccinations protects us from mumps (the MMR immunization, or Measles, Mumps, and Rubella).

Skin abnormalities also affect the genitalia. Eczema and psoriasis can cause redness, scaling, and itchiness. Fungal infections, like jock-itch (tinea cruris) also affect the skin of the scrotum as pictured here. Treatment of this rash is with an antifungal medication. Other fungal infections, like candida balantitis is also treated with medication.

Peyronie's disease is the formation of scar-like tissue on the penis. This can lead to abnormal curvature and painful erections. Peyronie's disease is usually felt as a fibrous plaque on the underside of the penis. Surgical treatment by a urologist is often required in advanced cases.

The abnormal growth of cells (cancer) can afflict essentially any part of the male anatomy. Testicular cancer generally affects young to middle-aged adults and is the leading cause of death from solid cancers in men between the ages of 15 and 32. There are many different types of testicular cancer depending on which type of cell begins to grow abnormally. (The photo is of a patient with lymphoma that has spread to the testicle.) Testicular cancers have a good cure rate when caught early, so discovering the tumor is important. A testicular self-exam done monthly by all men aged 15 and older can detect these usually symptomless tumors. Click here to learn how to do a testicular self-examination.

Cancer of the penis accounts for about 1% of all cancers in males. These cancers are usually slow growing, but can spread to surrounding lymph nodes and tissues making a cure more difficult. The photo shows a man with a cancer that has eaten away a significant amount of the tip of his penis. Obviously, any new or non-healing growth on the penis (or elsewhere), should be shown to your doctor. Check out our Skin Cancer Guide for more information and photographs.

Prostate cancer is the second most common cause of male cancer deaths (after lung cancer), and is most often found in men older than 50. The cancer seldomly produces symptoms until it spreads, so prostate screening (rectal exam and possibly a blood test) is important for early diagnosis and treatment.

CONGENITAL ABNORMALITIES
Congenital problems with the male genitalia are caused during fetal development. The most common abnormality is failure of the urethral tube to form correctly resulting in an additional hole in the penis. This additional hole is usually located on the underside (hypospadias - pictured) or top side (epispadias) of the penis and is usually not a significant problem. The result of having a hypospadias or epispadias is that urine and semen exit the penis from more than one site. Another fairly common abnormality is a phimosis. This is defined as an abnormally small opening of the foreskin. It can be congenital or acquired (from infection). Having a phimosis is a problem because it can lead to further infection and even some types of cancer due to the chronic accumulation of secretions and other debris under the foreskin (smegma). A surgical incision or circumcision is the treatment of choice for phimosis. Congenital anomalies of the testicle also occur occasionally. An undescended testicle (cryptorchidism) is the most common birth defect affecting up to 0.8% of newborn males (1 out of every 125) . If the testicle has not descended into the scrotum by 1 year of age, it needs to be surgically lowered (or removed), as a large number of undescended testicles will become cancerous.



SOURCE

Tuesday, July 7, 2009

Gonorrhoea What is it ?



What Is Gonorrhoea ?

Bacteria known as Neisseria gonorrhoeae or gonococcus cause gonorrhoea.(1) It usually affects the genital area but it can also infect the throat or anus. It is easily transmitted during vaginal intercourse but it can also be transmitted during anal or oral sex. (2)

Gonorrhoea is sometimes found in the rectum of women who have not had anal intercourse. This is because it can spread from the vagina. It can also be passed from a woman to her baby during birth. (3)

The outer cell membrane of neisseria gonorrhoeae is covered with large protein and sugar molecules and it is these components which help the bacteria to attach to and infect the infected persons cells. (4)


Gonorrhoea Body

Gonorrhoea (Gonorrhea) can also affect the eyes. Gonococcal conjunctivitis is an infection of the thin, transparent conjunctiva (skin) covering the eye and inner eyelids. It occurs mostly in infants infected during vaginal birth, but adult infection can occur can occur via the fingers of either the individual or her or his partner. Gonococcal infection of the eye is an ophthalmic emergency and needs urgent medical attention.(5)

SOURCE 1

Gonorrhoea is a sexually transmitted infection STI) caused by a bacteria called neisseria gonorrheoae or gonococcus. It used to be known as 'the clap'. The bacteria is found mainly in the semen of infected men and vaginal fluids of infected women, so is easily passed between people through sexual contact.

Gonorrhoea is most commonly spread through:

  • Unprotected sex including oral and anal sex.
  • Sharing vibrators or other sex aids that have not been washed or covered with a new condom.
Gonorrhoea is the second most common STI in the UK with over 19,000 cases reported in 2006. Young men aged 20-24 and women aged 16-19 are most affected.
Source2

How to Treating gonorrhoea



Gonorrhoea Bactery

It is important to receive treatment for gonorrhoea as quickly as possible, as the disease can cause complications and serious health problems such as pelvic inflammatory disease (PID) if it is left untreated.

Gonorrhoea is treated with a single dose of antibiotics, usually ceftriaxone, cefiximine or spectinomycin. The antibiotics are either given orally (a pill) or through an injection.

Recently, it has become apparent that some strains of gonorrhoea are becoming resistant to some antibiotics - particularly antibiotics that have been used heavily in the past like penicillin - so these tend not to be used. However, your GP or clinic may still recommend them if your tests show that your infection is particularly sensitive to them.

You will need to make an appointment with your GP or GUM clinic for around 72 hours after your initial treatment to check that the antibiotics have been effective. You should avoid sexual intercourse and intimate contact with other partners until it is confirmed that the antibiotics have worked.

If the antibiotics have been effective, you should notice an improvement in your symptoms quite quickly:

  • pain and discharge when you urinate should improve within 2-3 days,
  • pain and discharge in your anus should improve within 2-3 days,
  • bleeding between periods, or extra heavy periods, should improve by the time of your next period, and
  • pain in your pelvis or your testicles should start to improve quickly but could take up to two weeks to go away.

Babies who display signs of a gonorrhoeal infection at birth (such as inflammation of the eyes) or who are at increased risk of infection (the mother has been diagnosed with gonorrhoea), will usually be given antibiotics immediately after birth to prevent blindness and other complications.

Telling your partner

If you do have gonorrhoea, it is important that your current sexual partner, or any sexual partner you have had over the last three months, is tested and treated.

Some people can feel angry, upset or embarrassed about discussing gonorrhoea with their current or former partner(s). You should not feel afraid about discussing your concerns with the clinic staff or your GP, as they can advise you about who should be contacted and the best way to contact them.

Your clinic can arrange - with your permission - for a 'contact slip' to be given to your partner(s). This slip explains to that person that they may have been exposed to a sexually transmitted infection and they should go for a check-up. The slip does not have your name on it, and your details will remain totally confidential.

Nobody can force you to tell any of your partners about your gonorrhoea, but it is strongly recommended. Left untested and untreated, gonorrhoea can lead to serious and life-long illnesses.

SOURCE 3



Genital Herpes




Herpes is a sexually transmitted disease (STD) caused by the herpes simplex virus (HSV).

Genital herpes infection is very common and on the increase in the United States. Nationwide 45 million people aged 12 and older (1 out of 5 of the total adolescent and adult population) are infected with HSV-2.

It is more common in women (1 out of 4) than in men (1 out of 5) possibly because male to female transmission is more efficient than female to male transmission.

HSV-2 infection is also more common in areas of high socio-economic disadvantage, facing fundamental issues of health such as:

  • access to quality health care

  • poverty

  • living in communities with a high prevalence of STDs

  • illicit drug use


Transmission

Herpes is spread by direct contact including:

Sexual contact

  • Anal sex

  • Oral sex

  • Vaginal sex

as well as

  • Kissing

  • Skin-to-skin contact which transmits HSV-1 and HSV-2

Genital herpes

  • Can be transmitted with or without the presence of sores or other symptoms

  • Is often transmitted by people who do not realize infection can be passed on even when there are no symptoms

  • Is often transmitted by people unaware they are infected

Statistics

  • An estimated 40 million people have genital herpes which is a chronic viral infection

  • About 500,000 new people get symptomatic herpes each year

  • There are even more people without symptoms

Genital herpes infection

  • has increased 30% in the U.S.

  • has increased most dramatically among young white teens (12-19 years old)

  • among whites is 5 times higher than 20 years ago

  • is twice as likely to infect 20-29 year old adults


Symptoms


Symptoms vary, but often most people have no noticeable symptoms.

Early symptoms may include:

  • burning sensation in the genitals

  • flu-like symptoms

  • lower back pain

  • pain when urinating

Small red bumps may appear in the genital area after initial symptoms, which later develop into painful blisters.

The blisters usually:

  • crust over

  • form a scab

  • heal

SOURCE SITE

What is vaginismus 2

Vaginismus is vaginal tightness causing discomfort, burning, pain, penetration problems, or complete inability to have intercourse.

Vaginismus [vaj-uh-niz-muh s]

Vaginismus is a condition where there is involuntary tightness of the vagina during attempted intercourse. The tightness is actually caused by involuntary contractions of the pelvic floor muscles surrounding the vagina. The woman does not directly control or 'will' the tightness to occur; it is an involuntary pelvic response. She may not even have any awareness that the muscle response is causing the tightness or penetration problem.

In some cases vaginismus tightness may begin to cause burning, pain, or stinging during intercourse. In other cases, penetration may be difficult or completely impossible. Vaginismus is the main cause of unconsummated relationships. The tightness can be so restrictive that the opening to the vagina is 'closed off' altogether and the man is unable to insert his penis. The pain of vaginismus ends when the sexual attempt stops, and usually intercourse must be halted due to pain or discomfort.

Types of vaginismus

When a woman has never at any time been able to have pain-free intercourse due to this muscle spasm her condition is known as primary vaginismus. Some women with primary vaginismus are unable to wear tampons and/or complete pelvic exams. Many couples are unable to consummate their relationship due to primary vaginismus. [see Symptoms]

Vaginismus can also develop later in life, even after many years of pleasurable intercourse. This type of condition, known as secondary vaginismus, is usually precipitated by a medical condition, traumatic event, childbirth, surgery, or life-change (menopause). [see Causes]

Vaginismus is treatable

Vaginismus is highly treatable and a full recovery from vaginismus is the normal outcome of treatment. Successful vaginismus treatment does not require drugs, surgery, hypnosis, nor any other complex invasive technique. Following a straight-forward program, pain-free and pleasurable intercourse is attainable for most couples.

References

  1. vaginismus. (n.d.). Dictionary.com Unabridged (v 1.1). Retrieved February 19, 2007 from Dictionary.com website: http://dictionary.reference.com/browse/Vaginismus
SOURCE

What is vaginismus?

Vaginismus (the Latin equivalent of the word Vaginism) is a condition which affects a woman's ability to engage in any form of vaginal penetration, including sexual penetration, insertion of tampons, and the penetration involved in gynecological examinations. This is the result of a conditioned reflex of the pubococcygeus muscle, which is sometimes referred to as the "PC muscle". The reflex causes the muscles in the vagina to tense suddenly, which makes any kind of vaginal penetration—including sexual penetration—either painful or impossible.

A vaginismic woman does not consciously control the spasm. The vaginismic reflex can be compared to the response of the eye shutting when an object comes towards it. The severity of vaginismus and the pain during penetration, including sexual penetration, varies from woman to woman.

Primary vaginismus

Primary vaginismus occurs when a woman has never been able to have penetrative sex or experience any kind of vaginal penetration without pain. It is commonly discovered in teenagers and women in their early twenties, as this is when many young women in the Western world will initially attempt to use tampons, have some form of penetrative sex, or undergo a Pap smear. Women who have vaginismus may not be aware of their condition until they attempt vaginal penetration. It may be confusing for a woman to discover she has vaginismus. She may believe that vaginal penetration should naturally be easy, or she may be unaware of the reasons for her condition.[citation needed]

A few of the main factors which may contribute to primary vaginismus include:

  • sexual abuse, rape, or attempted sexual abuse
  • knowledge of (or witnessing) sexual or physical abuse of others, without being personally abused
  • domestic violence or conflict in the early home environment
  • having been taught that sex is immoral, vulgar, or demoralising
  • fear of pain associated with penetration, particularly the popular misconception of 'breaking' the hymen upon the first attempt at penetration, or the idea that vaginal penetration will inevitably hurt the first time it occurs
  • being sexualized or told about sex in violent or inappropriately graphic terms before an age at which one is comfortable with such information
  • any physically invasive trauma
  • Generalized anxiety

Occasionally, primary vaginismus is idiopathic.[1]

Vaginismus has been classified by Lamont[2] according to the severity of the condition. He describes four degrees of vaginismus: In first degree vaginismus, the patient has spasm of the pelvic floor which can be relieved with reassurance. In second degree, the spasm is present but maintianed throughout the pelvis even with reassurance. In third degree, the patient elevates the buttocks to avoid being examined. In fourth degree vaginismus (also known as grade 4 vaginismus), the most severe form of vaginismus, the patient elevates the buttocks, retreats and tightly closes the thighs to avoid examination. The Lamont classification continues to be use to the present and allows for a common language among researchers and therapists.

Secondary vaginismus

Secondary vaginismus occurs when a woman who has previously been able to achieve penetration develops vaginismus. This may be due to physical causes such as a yeast infection or trauma during childbirth, or it may be due to psychological causes. The treatment for secondary vaginismus is the same as for primary vaginismus, although, in these cases, previous experience with successful penetration can assist in a more rapid resolution of the condition.[citation needed]

Prevalence


The prevalence of vaginismus has been reported to be 6% in two widely divergent cultures, Morocco and Sweden. The prevalence of manifest dyspareunia has been reported as low as 2% in elderly British women, yet as high as 18–20% in British and Australian studies.[3]

By another study vaginismus rates of between 12% and 17% have been reported in women presenting to sex therapy clinics (Spector and Carey 1990). National Health and Sexual Life Survey, which used random sampling and structured interviewing, report that between 10% and 15% of women reported having experienced pain during intercourse during the last 6 months (Laumann et al. 1994).[1]

The most recent study estimates of vaginismus range from 5% to 47% of people presenting for sex therapy or complaining of sexual problems, with significant differences across cultures (see Reissing et al. 1999; Nusbaum 2000; Oktay 2003). It seems likely that society's expectations of women's sexuality may particularly impact on these sufferers.[4]

Treatment


There are a variety of factors that can contribute to vaginismus. These may be psychological or physiological, and the treatment required can depend on the reason that the woman has developed the condition. As each case is different, an individualized approach to treatment is useful.

The condition will not necessarily become more severe if left untreated, unless the woman is continuing to attempt penetration, despite feeling pain. Some women may choose to refrain from seeking treatment for their condition.

According to the Cochrane Collaboration review of the scientific literature, "In spite of encouraging results reported from uncontrolled case series there is very limited evidence from controlled trials concerning the effectiveness of treatments for vaginismus. Further trials are needed to compare therapies with waiting list control and with other therapies."[5]

Although few controlled trials have been carried out, many serious scientific studies have tested and proved the efficacy of the treatment of vaginismus. In all cases where the systematic desensitization method was used, success rates were close to 90–95% and even 100%. For an example of one of these studies, see Nasab, M., & Farnoosh, Z., or for a basic review, see Reissing's literature review (links below).

[edit] Psychological treatment

According to Ward and Ogden's qualitative study on the experience of vaginismus for women (1994), the three most common contributing factors to vaginismus are fear of painful sex; the belief that sex is wrong or shameful (often the case with patients who had a strict religious upbringing); and traumatic early childhood experiences (not necessarily sexual in nature).

Vaginismus patients are twice as likely to have a history of childhood sexual interference and held less positive attitudes about their sexuality whereas no correlation was noted for lack of sexual knowledge or physical abuse. [6]

For some women, especially those with primary vaginismus, it is important to address the psychological aspects of the problem as well as the actual muscle spasm. A woman may choose to address the issue on her own terms, or she may avail the help of a therapist. Some women, especially those with secondary vaginismus, may rely on a physical rather than psychological treatment and also be successful.

There are emotional difficulties associated with vaginismus, which can include low self-esteem, fears, and depression.

[edit] Physical treatment

Physical treatment of the internal spasms may include sensate focus exercises, exploring the vagina through touch, and desensitization with vaginal dilators. Dilating involves inserting objects, usually phallic in shape, into the vagina. In treating the spasms through dilation, the objects used gradually increase in size as the woman progresses. Medical dilators may be obtained online, though they may be expensive.

Botox is a relatively new treatment for vaginismus, first described in 1997 [7]. Ghazizadeh and Nikzad reported on the use of botulinum toxin in the treatment of refractory vaginismus in 24 patients. In this study, Dysport (a type of Botox) 150-400 mIU (Ipsen Ltd, United Kingdom) was used. 23 patients were able to have vaginal examinations one week post procedure showing little or no vaginismus. One patient refused vaginal examination and did not attempt coitus. Of the 23 patients, 18 (75%) achieved satisfactory intercourse, 4 (17%) had mild pain and one patient was unable to have intercourse because of her husband’s impotence. A second dose of Dysport was needed on one patient. There were no recurrences during the 2-24 month follow-up period. [8]

A controlled study using Botox for one group of patients was compared to saline in another. 8 women treated with the Botox were able to achieve satisfactory intercourse whereas 5 women who were injected with saline controls showed no response. None of the 8 women who had Botox required any further treatment. The procedure is simple, easy, cost-effective, not time-consuming and can be achieved on an outpatient basis. No complications were reported. [9]

SOURCE

What Is Vagina


The vagina (from Latin, literally "sheath" or "scabbard") is a fibromuscular tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. Female insects and other invertebrates also have a vagina, which is the terminal part of the oviduct. The Latinate plural (rarely used in English) is vaginae.

In common speech, the term "vagina" is often used to refer to the vulva or female genitals generally; strictly speaking, the vagina is a specific internal structure and the vulva is the exterior genitalia only.

Human anatomy


The human vagina is an elastic muscular canal that extends from the cervix to the vulva.[1] Although there is wide anatomical variation, the length of the unaroused vagina is approximately 6 to 7.5 cm (2.5 to 3 in) across the anterior wall (front), and 9 cm (3.5 in) long across the posterior wall (rear).[2] During sexual arousal the vagina expands in both length and width.[3] Its elasticity allows it to stretch during sexual intercourse and during birth to offspring.[4] The vagina connects the superficial vulva to the cervix of the deep uterus.

If the woman stands upright, the vaginal tube points in an upward-backward direction and forms an angle of slightly more than 45 degrees with the uterus. The vaginal opening is at the caudal end of the vulva, behind the opening of the urethra. The upper one-fourth of the vagina is separated from the rectum by the rectouterine pouch. Above the vagina is Mons Veneris. The vagina, along with the inside of the vulva, is reddish pink in color, as with most healthy internal mucous membranes in mammals. A series of ridges produced by folding of the wall of the outer third of the female vagina is called vaginal rugae. They are transverse epithelial ridges and their function is to provide the vagina with increased surface area for extension and stretching. Vaginal lubrication is provided by the Bartholin's glands near the vaginal opening and the cervix. The membrane of the vaginal wall also produces moisture, although it does not contain any glands. Before and during ovulation, the cervix's mucus glands secretes different variations of mucus, which provides a favorable alkaline environment in the vaginal canal to maximize the chance of survival for sperm.

The hymen is a thin membrane of connective tissue which is situated at the opening of the vagina. As with many female animals, the hymen covers the opening of the vagina from birth until it is ruptured during sexual or non-sexual activity. The tissue may be ruptured by vaginal penetration, a pelvic examination, injury, or certain types of activities, such as horseback riding or gymnastics. The absence of a hymen does not necessarily indicate prior sexual activity, as it is not always ruptured during sexual intercourse.[5] Similarly, the presence does not necessarily indicate a lack of prior sexual activity, as it is possible for light activity to not rupture it, or for it to be surgically restored.

Physiological functions of the vagina


The vagina has several biological functions.

Uterine secretions

The vagina provides a path for menstrual blood and tissue to leave the body. In industrial societies, tampons, menstrual cups and sanitary napkins may be used to absorb or capture these fluids.

Sexual activity

The concentration of the nerve endings that lie close to the entrance of a woman's vagina can provide pleasurable sensation during sexual activity, when stimulated in a way that the particular woman enjoys. During sexual arousal, and particularly the stimulation of the clitoris, the walls of the vagina self-lubricate. This reduces friction that can be caused as a result of various sexual activities. Research has found that portions of the clitoris extend into the vulva and vagina.[6]

With arousal, the vagina lengthens rapidly to an average of about 4 in.(8.5 cm), but can continue to lengthen in response to pressure.[7] As the woman becomes fully aroused, the vagina tents (last ²⁄₃ expands in length and width) while the cervix retracts.[8] The walls of the vagina are composed of soft elastic folds of mucous membrane skin which stretch or contract (with support from pelvic muscles) to the size of the inserted penis.

G-spot

An erogenous zone referred to commonly as the G-spot is located at the anterior wall of the vagina, about five centimeters in from the entrance. Some women experience intense pleasure if the G-spot is stimulated appropriately during sexual activity. A G-Spot orgasm may be responsible for female ejaculation, leading some doctors and researchers to believe that G-spot pleasure comes from the Skene's glands, a female homologue of the prostate, rather than any particular spot on the vaginal wall.[9][10][11] Some researchers deny the existence of the G-spot.[12]

Childbirth

During childbirth, the vagina provides the channel to deliver the baby from the uterus to its independent life outside the body of the mother. During birth, the vagina is often referred to as the birth canal. The vagina is remarkably elastic and stretches to many times its normal diameter during vaginal birth.


SOURCE