Quick answer: The clitoris is a complex, multi-part organ. The visible glans is only the tip; the internal structure (including the body, crura, and vestibular bulbs) extends up to 10cm inside the pelvis and wraps around the vaginal canal. With over 8,000 nerve endings in the glans alone, it’s the most nerve-dense organ in the human body and exists exclusively for pleasure.
Here’s a fact that should be on every GCSE biology curriculum but somehow isn’t: the clitoris is significantly larger than most people realise. The visible part, the glans, is roughly the size of a pea. The full structure, including the parts buried inside the body, can be up to 10cm long. That’s the part nobody told you about.
The full internal anatomy of the clitoris wasn’t even properly mapped until 2005, when Australian urologist Dr Helen O’Connell published her landmark MRI study showing the clitoris is far larger and more complex than textbooks had ever depicted (O’Connell et al., 2005). For context: that’s the same year YouTube launched. We had video-sharing platforms before we had a proper diagram of the clitoris.
This guide breaks the whole organ down, what each part is, what it does, and why it matters. (Part of our Erogenous Zones & Anatomy Guide series.)
The External Clitoris (What You Can See)
When most people say “clitoris,” they’re actually referring to the glans, the visible bump at the top of the vulva, where the inner labia meet. That’s the only externally visible part of the organ. Here’s what’s on the surface:
The Glans Clitoris
Roughly the size of a pea (though it varies significantly from person to person), the glans sits at the top of the vulva. It’s densely packed with nerve endings, over 8,000 in this small area alone, more than twice the nerve endings in the head of the penis. That’s why it’s so sensitive, and also why direct touch can sometimes feel like too much.
The Clitoral Hood (Prepuce)
The fold of skin that covers and protects the glans. Think of it as a built-in shield. The hood varies in size and shape, some are barely there, others fully cover the glans even when aroused. None of that is unusual. The hood retracts during arousal, exposing more of the glans for direct stimulation.
The Internal Clitoris (The Part Nobody Mentions)
This is where most sex education falls apart. The clitoris doesn’t end at the glans, it extends deep into the pelvis in a wishbone-shaped structure that wraps around the vaginal canal. Here’s what’s underneath:
The Body (Corpus)
Just behind the glans, the clitoris bends backward into the body. The body is roughly 2–4cm long and made of erectile tissue, the same kind of spongy tissue that makes up the penis. When you’re aroused, it fills with blood and becomes firm.
The Crura (Legs)
From the body, the clitoris splits into two “legs” called crura, which extend downward and outward, anchoring to the pubic bone. Each crus is about 5–9cm long. They sit on either side of the vaginal opening, just under the labia majora.
The Vestibular Bulbs
Two more elongated masses of erectile tissue that sit alongside the crura, hugging the vaginal canal and urethra. The bulbs swell with blood during arousal, increasing sensation throughout the vulva and creating that full, engorged feeling. They’re a major part of why penetration can feel so good, you’re indirectly stimulating the internal clitoral structure.
Why This Matters
Because the internal clitoris wraps around the vaginal canal, all orgasms are, in a sense, clitoral. The distinction between “clitoral” and “vaginal” orgasms is largely semantic — both involve stimulation of clitoral tissue, just from different angles. The G-spot, often described as a separate area, is now widely understood to be where the internal clitoral structure meets the front vaginal wall.
How It Actually Works
The clitoris has one job: pleasure. It’s the only organ in the human body, of any sex, that exists purely for sexual sensation. No reproductive function, no urinary function. Just feeling good.
During arousal, blood flow increases to the entire clitoral structure. The glans becomes more sensitive, the body and crura become firm, and the vestibular bulbs swell, creating a full, heavy sensation throughout the vulva. The clitoral hood retracts, exposing more of the glans.
At orgasm, the muscles around the clitoris (and throughout the pelvic floor) contract rhythmically, releasing built-up tension and triggering the cascade of dopamine, oxytocin and endorphins that makes orgasm feel so good. A 2018 study in The Journal of Sexual Medicine confirmed that the majority of vulva owners require direct or indirect clitoral stimulation to reach orgasm during partnered sex (Herbenick et al., 2018). This isn’t a flaw in the design, it’s the design.
How to Stimulate the Clitoris (All Of It)
Now that you know the clitoris is much bigger than the glans, you can stimulate it in much more interesting ways.
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Direct glans stimulation. Light touch, circular motion, or tongue stimulation directly on the glans. This is the most intense type, some people love it, some find it too much. If it’s overwhelming, try working through the clitoral hood instead.
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Hood stimulation. Touching the clitoris through the hood softens the sensation and is more comfortable for many people, especially at the start of arousal.
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Suction.
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Internal stimulation of the clitoral structure. Penetration (with fingers, a partner, or a toy) stimulates the internal clitoris from inside the vaginal canal. This is what’s happening when people describe a “G-spot” orgasm.
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Blended stimulation.
Things People Get Wrong About the Clitoris
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It’s not just the bump. The visible glans is one small part of a much larger organ. Stimulating only the glans is like only ever scratching the surface.
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Bigger isn’t better. Glans size varies widely. There’s no correlation between size and sensitivity or orgasm capacity. Every clitoris is fully equipped.
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It’s not the same as the G-spot. The G-spot is now understood to be where the internal clitoral structure meets the vaginal wall. They’re connected, not separate.
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It doesn’t “wear out.” Frequent clitoral stimulation doesn’t reduce sensitivity over time. If anything, regular sexual activity can improve genital responsiveness.
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Direct touch isn’t always best. The glans is so sensitive that for many people, touching it through the hood or focusing on the surrounding area feels better than direct contact — especially before they’re fully aroused.
Related: Erogenous Zones & Anatomy Guide | Erogenous Zones & How to Stimulate Them | Everything About the G-Spot | Vulvas 101 | Prostate Pleasure Guide
FAQs
How big is the clitoris really?
The visible glans is roughly pea-sized, but the full internal structure can be up to 10cm long. The entire organ, glans, body, crura, and vestibular bulbs, is comparable in volume to the penis. It’s just mostly hidden inside the body.
Does the clitoris have more nerve endings than the penis?
Yes. The glans clitoris contains over 8,000 nerve endings concentrated in a tiny area. The head of the penis has roughly 4,000. That’s why the clitoris is so much more sensitive square-millimetre for square-millimetre.
Why does direct clitoral touch sometimes feel too intense?
Because of that nerve density. Before you’re fully aroused, direct contact with the glans can feel sharp or uncomfortable. Working through the hood, around the surrounding area, or using lubrication softens the sensation until your body is ready for more.
Can the clitoris get bigger?
Yes. The clitoris is made of erectile tissue, so it swells with blood during arousal. The glans typically becomes 2–3 times its resting size when fully aroused, though this varies. Hormonal changes (especially testosterone) can also affect resting size.
Is the G-spot part of the clitoris?
Most current research suggests yes. The G-spot is widely understood to be the area where the internal clitoral structure (specifically the body and crura) meets the front wall of the vagina. Stimulating it stimulates the deeper clitoral network. Some researchers now use the term clitourethrovaginal complex to describe this interconnected structure (Jannini et al., 2014).
Sources
O’Connell, H.E. et al. (2005). “Anatomy of the clitoris.” The Journal of Urology, 174(4), 1189–1195.
Herbenick, D. et al. (2018). “Women’s experiences with genital touching, sexual pleasure, and orgasm.” The Journal of Sex & Marital Therapy, 44(2), 201–212.
Jannini, E.A. et al. (2014). “Beyond the G-spot: clitourethrovaginal complex anatomy in female orgasm.” Nature Reviews Urology, 11, 531–538.
Pauls, R.N. (2015). “Anatomy of the clitoris and the female sexual response.” Clinical Anatomy, 28(3), 376–384.
Now You Know
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