Women and girls have three separate openings between their legs: the urethral opening (where urine comes out), the vaginal opening, and the anus. All three are close together but completely separate, each with its own function. Many people grow up without a clear explanation of this, so the question is more common than you might think.
The Three Main Openings
From front to back, the three openings are arranged in a line. The urethral opening sits closest to the front of the body, just below the clitoris. The vaginal opening is next, slightly farther back. The anus is last, separated from the vaginal opening by a small patch of skin called the perineum. Each opening leads to a different internal structure and serves a completely different purpose.
It helps to know that everything you can see on the outside is called the vulva. The vulva includes the outer and inner lips (labia), the clitoris, and the visible openings. People often use “vagina” to refer to this whole area, but the vagina is actually just one specific canal on the inside of the body. The vaginal opening is the entrance to that canal.
The Urethral Opening
The urethral opening is where urine exits the body. It sits directly below the clitoris and above the vaginal opening. It’s small, and many women have trouble spotting it even with a mirror because it blends into the surrounding tissue. This opening connects to the urethra, a short tube that runs down from the bladder. Its only job is to carry urine out of the body.
On either side of the urethral opening, there are two tiny ducts called Skene’s glands. These produce small amounts of fluid, but their openings are nearly impossible to see with the naked eye. They’re not counted among the three main openings because they’re microscopic, but they do technically exist.
The Vaginal Opening
The vaginal opening is the middle and largest of the three openings. It leads to the vaginal canal, a flexible, muscular passage that extends several inches into the body toward the cervix and uterus. This single opening serves multiple functions throughout life: menstrual blood flows out through it, it’s the opening used during penetrative sex, sperm travel through it to reach an egg, and a baby passes through it during vaginal childbirth. It’s sometimes called the birth canal for that reason.
The walls of the vaginal canal contain nerve endings and are lined with tissue that lubricates and expands when a person is aroused. This is also the opening where a tampon goes. If you’re learning to use tampons, the vaginal opening is located just beyond the inner lips, positioned toward the back relative to the urethral opening. A common beginner mistake is angling the tampon straight up instead of slightly back toward the lower spine, which can cause discomfort.
The Hymen
Just inside the vaginal opening, there’s a thin rim of tissue called the hymen. Contrary to popular belief, the hymen is not a seal that covers the opening. In most people, it’s a small crescent or ring of tissue around the edges of the vaginal opening, left over from fetal development. It naturally has a gap that allows menstrual blood to pass through.
Hymens come in different shapes. Some are barely noticeable, others are more prominent. In rare cases, a hymen can cover the entire opening (called an imperforate hymen), which is a medical condition that needs a simple procedure to correct. This is uncommon and, when treated, has no long-term effects on fertility or sexual function. The idea that a hymen indicates whether someone has had sex is a misconception with no medical basis.
The Anus
The anus is the third opening, located farthest back. It’s the exit point of the digestive tract. A ring of muscle called the anal sphincter controls when it opens and closes for bowel movements. The anus is completely separate from the reproductive and urinary systems. The small strip of skin between the vaginal opening and the anus, the perineum, is only about an inch or so of tissue, but it clearly divides the two areas. Internally, a dense knot of muscle and tissue called the perineal body reinforces this separation.
Why This Gets Confusing
A big reason people aren’t sure about the number of openings is that the anatomy is compact. All three openings are tucked between the labia and sit within just a couple of inches of each other. The urethral opening in particular is easy to miss because it’s so small. Unlike male anatomy, where the urinary and reproductive functions share one visible opening at the tip of the penis, female anatomy uses two completely separate openings for urination and reproduction.
Another source of confusion is language. When people say “down there,” they’re usually lumping the vulva, vagina, urethra, and sometimes the anus into one vague zone. Knowing that these are distinct structures with distinct openings makes it easier to understand your own body, communicate with a healthcare provider, and recognize when something feels off in a specific area.