The Structure of the Clitoris and the Female Orgasm

As you probably know by now, the clitoris – or at least, what we call the clitoris, i.e. that tiny little pearl that we can see nestling between the upper folds of the labia – is actually only a small part of a much larger organ that goes deep around the vagina.

clitoris

The important thing about this, from the point of view of the female orgasm, is that there seems to be an enormous network of erectile tissue, rather similar to the erectile tissue of the penis, in the urethral sponge, and the so-called bulbs that lie underneath the labia.

At the same time as the structure of the clitoris was being researched, other researchers were publishing an analysis of the history of female ejaculation, which was known as far back in history as the ancient Greeks. Perry and Whipple are the pioneers in this area.

(How extraordinary that both the structure of the clitoris and the phenomenon of female ejaculation have been effectively suppressed in the history of medical science.)

But rather than dwell on what that might mean, let’s move on to the more optimistic viewpoint that exists today: medical students are being taught about the extent of the clitoris, and hopefully the power of the Internet has spread information about the glorious experience of female ejaculation.

What are squirting orgasms and female ejaculate?

It’s a very good question, and one clue to the answer comes from looking at the chemical composition of the fluid which a woman ejaculates the moment of orgasm – or rather, the fluid which a woman is able to ejaculate at the moment of orgasm, if she stimulated in the right way. This is what is known as squirting, or as a squirting orgasm.

But it isn’t a simple answer: one thing that has confused analysis of the female ejaculatory fluid is that it may flow either into the bladder (which effectively is backwards) or outwards through the urethral opening in which case it’s expelled into the outer world, a phenomenon that’s often been mistaken for urination.

The point about this is that when a woman clamps down with the muscles of her pelvis,  perhaps because she feels that she is about to urinate during sex, any female ejaculate that might otherwise have been expelled is going to be forced backwards into the bladder. (You can see that knowing how to squirt is essential for a girl who wants to maximize sexual pleasure in this way.)

This retrograde or backwards ejaculation can confuse chemical analysis of the fluid that would otherwise leave her body at the moment of orgasm – and it has also led to confusion about the quantity of fluid that a woman’s ejaculating.

Analyzing urine in the bladder is a bit misleading here. It’s the fluid that’s ejaculated which can provide more clues as to the nature of the tissue from which it comes, and indeed the nature of female ejaculation itself.

female-ejaculation

The most important work in this area may have been done by Dr Zaviacic, working in Slovakia, who published a detailed research project on the female prostate tissue, backed up by dozens of photographs showing its structure.

He has been able to confirm that the female prostate is in fact completely functional, a whole organ, and produces fluid which includes prostate markers such as prostate-specific antigen. It also appears to produce hormones. But its primary function, without question, is to produce female ejaculate.

How extraordinary – this goes against everything that we might have expected. Yet, as far back as 1948 a detailed analysis of the structure of the female prostate – then called paraurethral glands – revealed how they open out into the urethra. This work also revealed that there are three distinct types of  “female prostate”…. a fact which hardly matters, but which demonstrates that all women do indeed have this tissue to a greater or lesser extent.

So what is female ejaculate?

A very important question! And the simple answer is that it’s a clear liquid, which is watery, but is definitely not the same as urine or vaginal lubrication. And why would it be? It’s produced by prostatic tissue, whereas your in this produced by the kidneys, and vaginal lubrication is produced by the wall of the vagina.

It appears that female ejaculate and male ejaculate have a lot in common, chemically, although there is no semen or sperm in female ejaculatory fluid. The taste and smell of the fluid appears to vary throughout a woman’s menstrual cycle, but it certainly differs from the taste and smell of urine. And its function? One suggestion is that it is antimicrobial…

Women have glandular tissue below the bladder and surrounding the urethra that appears to be homologous to the male prostate. This tissue (also called “female prostate” or Skene’s glands) appears to the source of a viscous, white secretion, which exits from the urethra upon sexual stimulation in some women. Analysis of this secretion (also known as “female ejaculate”), and comparison with pre-coital urine from the same women, revealed that its composition was unlike urine and often contained components also found in male seminal fluid (minus the sperm). The female ejaculate had lower levels of creatinine, but had elevated levels of prostate specific antigen, prostatic acidic phosphatase, prostate specific acid phosphatase, and glucose. The functional importance of female ejaculate has yet to be fully elucidated. It is possible that retention of a prostatic tissue homolog and its glandular secretion in women is merely a vestige of development and differentiation from an embryonic, gender-neutral body plan. We hypothesize that female ejaculation has a unique function in producing a secretion into the urethra that provides protection from urinary tract infections (UTIs). We further predict that female ejaculate contains antimicrobial compounds including elements such as zinc. We also hypothesize that retention of prostatic tissue and an ability to ejaculate its glandular secretion were maintained in women because these traits provided an evolutionary advantage. Specifically: (1) women who could ejaculate antimicrobial secretions into the urethra were less likely to suffer UTIs (particularly coitus-induced UTIs), (2) women without UTIs were more likely to be receptive to coitus at a greater frequency, (3) women engaging in frequent coitus were more likely to become pregnant, and (4) women who became pregnant often were more likely to successfully reproduce the species.

What of the G spot?

Accepting that the tissue surrounding the urethra is of two types: prostatic tissue in the female prostate glands and erectile tissue contained within the clitoris, it now appears that the G spot is made up of an area which contains both of these anatomical structures. So it may be that the G spot is not in fact an unique organ in its own right, but just a manifestation of the presence of the female prostate and erectile tissue of the clitoris.

In other words, it may be an area that can be stimulated by a finger or an erect penis, rather than a specific organ. Deborah Sundahl, however, specifically says that “the G spot is not merely a spot on the wall of the vagina, but an organ one can feel and stimulate through the vaginal wall”.

In fact, as any man or woman who stimulated the G spot can confirm, during sexual stimulation the texture of the G spot changes from “ridgy” and rough to smooth and lumpy, almost as though there are little nodules underneath it… And this appears to represent the swelling of the prostatic tissue under the influence of sexual arousal.

Certainly different women have different size G spots: and indeed, even in the same woman, the size of the G spot can differ from sexual experience to sexual experience. Sometimes the G spot is small and delicate, protruding only slightly into the vagina; at other times, and in different women, the G spot is large enough to protrude significantly into the vagina, perhaps even so far as to be visible just beyond the entrance to the vagina.

Men and women alike often say they can’t find the G spot. This is probably because they don’t know what they’re looking for! And in addition, it’s true to say that not all women’s G spots are equally sensitive. In fact, the sensitivity varies enormously – some can be nearly numb, and some can be extremely sensitive. We’ll look at this later on.

So what’s the difference between clitoral and G spot orgasms?

Most of us have learned that the clitoris is the way to pleasure a woman. But the fact is that the G spot can be the source of orgasmic pleasure – and as I mentioned above, it’s sensitivity comes from the pelvic nerve rather than the pudendal nerve which serves the clitoris.

That results in a very different sensation for a woman who is receiving G spot stimulation than when she is receiving clitoral stimulation.

It was Alice Ladas, Beverly Whipple, and John Perry, who wrote a book called The G-Spot, in 1982, who were responsible for coming up with the term “the G spot”. They were actually also responsible for identifying the different nerve supply, the nature of what happens when you see a girl squirting, of female ejaculation, and the different quality of the orgasm produced by stimulation of this area.