Women and girls have three openings in the genital and pelvic area: the urethral opening (where urine comes out), the vaginal opening, and the anus. These three openings are separate from each other, each with its own function, and they’re arranged in a line from front to back.
This is one of the most commonly searched anatomy questions online, and for good reason. Sex education often glosses over the specifics, and many people use the word “vagina” to refer to the entire area when the correct term for the outer anatomy is actually the vulva. The vagina is just one internal structure. The vulva includes everything visible on the outside: the labia, the clitoris, the urethral opening, and the vaginal opening.
The Three Openings, Front to Back
If you’re looking at the vulva from front to back, here’s the order:
- Urethral opening (front): a small hole located just below the clitoris. This is where urine exits the body. It connects to the bladder through a short tube called the urethra. It has nothing to do with reproduction.
- Vaginal opening (middle): a larger opening below the urethral opening. This is where menstrual blood leaves the body, where penetrative sex occurs, and where a baby passes through during vaginal childbirth. The vagina itself is a muscular canal that connects to the uterus.
- Anus (back): located behind the vaginal opening, separated by a small patch of skin called the perineum. This is the exit point for the digestive system.
A common misconception is that urine and menstrual blood come out of the same hole. They don’t. The urinary system and the reproductive system have completely separate exits, even though both openings are close together within the vulva.
Why the Urethral Opening Is Easy to Miss
The urethral opening is tiny, and many women have never seen their own. It sits just below the clitoris, nestled between the inner labia. Unlike the vaginal opening, it’s not easily visible without a mirror and good lighting. Its small size is part of the reason so many people don’t realize it exists as a separate opening.
The Vaginal Opening and the Hymen
The vaginal opening is partially surrounded by a thin, flexible piece of tissue called the hymen. Despite widespread belief, the hymen is not a solid seal that “breaks.” It’s soft and elastic, and in most people it naturally has an opening that allows menstrual blood to flow out. The hymen can stretch or tear from many activities, not just sex, and its appearance varies widely from person to person.
In rare cases, about 1 in 1,000 females, the hymen does completely cover the vaginal opening. This is called an imperforate hymen, and it prevents menstrual blood from leaving the body. It’s typically identified during adolescence and corrected with a minor procedure.
Smaller Glandular Openings
Beyond the three main openings, there are also tiny glandular ducts in the vulva that most people would never notice. Two sets are worth knowing about because they can occasionally cause health issues.
The first set sits on either side of the vaginal opening. These pea-sized glands produce a mucus-like fluid that helps with lubrication. They can sometimes become blocked and form a cyst, which is one of the more common reasons someone might feel a small, painless lump near the vaginal opening.
The second set is located on either side of the urethral opening. These glands are much smaller and rarely cause problems, but they can occasionally become infected or develop cysts of their own.
These glandular openings are microscopic and aren’t counted among the “main” openings. For practical purposes, three is the number that matters.
Why This Gets Confusing
Part of the confusion comes from language. People routinely say “vagina” when they mean the vulva, which is the entire external area. When everything gets lumped under one word, it’s easy to assume there’s only one opening down there. In reality, the vulva is a complex structure with distinct parts that serve the urinary, reproductive, and digestive systems separately.
Another source of confusion is that diagrams in school textbooks often show these structures from the side in cross-section, which makes it hard to understand the actual layout as seen from the outside. A front-facing anatomical diagram of the vulva, available from most major health education sites, gives a much clearer picture of where each opening sits relative to the others.