The entire clitoris is about 3.5 to 4.25 inches long and roughly 2.5 inches wide. That surprises most people, because the only visible portion, a small rounded nub called the glans, is only about half an inch to one inch across. The rest of the organ extends inside the body, branching into structures that wrap around the vaginal canal.
What You Can See vs. What’s Inside
The glans is the external tip of the clitoris, sitting just above the urethral opening and partially covered by a small hood of skin. It’s densely packed with nerve endings, which is why it’s so sensitive to touch. But treating the glans as the whole clitoris is like calling the tip of an iceberg the entire iceberg.
Beneath the surface, the clitoris has a shaft (sometimes called the body) that angles upward and then splits into two leg-like extensions called crura. These crura run along either side of the vaginal opening, anchoring to the pelvic bone. There are also two bulbs of erectile tissue that flank the vaginal canal. Together, all of these internal structures form a wishbone-shaped organ that’s far larger than what’s visible from the outside.
How It Compares to the Penis
The clitoris and the penis develop from the same embryonic tissue. During early fetal development, the same structure (the genital tubercle) either grows rapidly to form the penile shaft or develops more modestly into the clitoral body. Both organs contain erectile tissue that fills with blood during arousal, and both have a glans packed with sensory nerve endings. The key difference is scale and arrangement: the penis is external and houses the urethra, while the clitoris is mostly internal and dedicated entirely to sensation.
Size Changes During Arousal
Like the penis, the clitoris becomes engorged with blood during sexual arousal. The glans swells, the internal bulbs expand, and the entire structure stiffens. This is completely normal and temporary. After arousal passes, the tissue returns to its resting size. If the clitoris stays noticeably swollen for a week or longer without arousal, that’s a different situation called clitoromegaly, which can result from hormonal imbalances or other medical causes.
Normal Variation From Person to Person
There’s no single “correct” size for a clitoris. The glans alone can range from about three-quarters of an inch to a full inch in diameter, and the internal structures vary as well. Genetics, hormone levels, and age all play a role. In clinical settings, doctors generally consider a glans length above 10 millimeters (about 0.4 inches) in a newborn to be unusually large, but in adults, there’s a wide range of healthy sizes with no meaningful medical cutoff.
How Size Changes With Age
Hormones influence clitoral tissue throughout life. During puberty, rising estrogen levels contribute to the development of the clitoris along with other genital structures. After menopause, declining estrogen and progesterone cause a process called urogenital atrophy, where the tissues of the vulva and vagina gradually thin. The clitoris doesn’t disappear, but it can become smaller over time as the surrounding tissue loses volume. This thinning can also change how the clitoris responds to touch. Some postmenopausal women notice reduced sensation, while others find that stimulation that was once pleasurable becomes uncomfortable or even painful. Topical estrogen therapy is one common approach for managing these changes.
Why the Full Size Matters
For most of medical history, anatomy textbooks either ignored the clitoris or depicted only the glans. The internal structures weren’t mapped in detail with modern imaging until the late 1990s and early 2000s. This matters practically, not just historically. Understanding that the clitoris extends deep into the pelvis helps explain why vaginal penetration can feel pleasurable even without direct contact with the glans: the internal bulbs and crura sit close enough to the vaginal walls that they receive indirect stimulation. It also explains why surgical procedures in the pelvic area, from episiotomies to certain cosmetic surgeries, carry a risk of damaging nerve-rich tissue that isn’t visible on the surface.