Where does the penis go when having sex?

When engaging in vaginal sex, the penis is inserted into the vagina, which is part of the female reproductive system. Here are the key points to understand:

Location of the Vagina

The vagina is located within the vulva, which includes the outer genitals such as the inner and outer labia (the lips surrounding the vagina), the clitoris, and the openings of the urethra and vagina34.

Insertion

During sex, the penis is guided into the vaginal opening, which is situated in the pubic region, just below the clitoris and between the labia14.

Depth of Penetration

The penis enters the vagina and can extend up to the cervix, which is the neck of the uterus located at the top of the vagina. However, the penis does not penetrate the cervix itself, as the cervix has a small, normally closed opening that allows semen to enter the uterus and menstrual blood to exit23.

Vaginal Anatomy

The vaginal walls are made of soft tissue that molds around the penis or any other object inserted into it. The length of the vagina varies, but it is not endless and stops at the cervix3. If the penis bumps against the cervix, it could be a source of discomfort for the partner.