Top things to know about vaginas:

The vagina connects the vulva to the cervix

As you age, your vagina ages too!

When you’re aroused, blood flows to the vagina to make it bigger, and more arousal fluid is produced

People often use the term vagina to refer to the entire female genital region between the legs—but this is incorrect.

Let’s first start with correcting this terminology. The vulva is the correct name for the external parts of the female genitalia. This includes the glans clitoris, labia minora and majora, opening of the urethra and vagina (the introitus), and the surrounding tissue.

What is a vagina?
The vagina is the tube between the vulva and the cervix. This tube is the connection between your uterus and the outside world. The vagina is what babies exit through during birth, and where menstrual blood exits through during your period. The vagina is also used for insertion, such as with a penis, fingers, female condoms, sex toys, tampons, or menstrual cups.

The vagina can also act as a route to other parts of the body. During penis-vagina sex, ejaculate is deposited in the vagina, allowing sperm to enter the uterus through the cervix. The walls of the vagina can also be used as an administrative route for medications and contraceptives, such as intervaginal hormone creams, the hormonal vaginal contraceptive ring, or vaginal suppository medications.