Menstruation is the most visible phase of the menstrual cycle and its beginning is used as the marker between cycles. The first day of menstrual bleeding is the date used for the last menstrual period …

Menstruation — aka having your period — is when blood and tissue from your uterus comes out of your vagina. It usually happens once every month.

Sep 21, 2025 · Menstruation, also known as a period, occurs when your uterus sheds its lining, causing blood and mucus to discharge from the vagina. 1 This usually occurs once a month if you are not …

Apr 22, 2023 · What's typical? The menstrual cycle is counted from the first day of one period to the first day of the next. The cycle isn't the same for everyone. Menstrual bleeding might happen every 21 to …

Explore our new research on period poverty and stigma for U.S. students and learn how to become an advocate in your community. We author stigma-busting educational curriculum and resources - free …

Mar 25, 2019 · What is a normal menstrual cycle? Your period — and the PMS symptoms that can accompany it — is just one part of your monthly menstrual cycle.

It may look like a lot of blood, but a girl usually only loses a few tablespoons of blood during the whole period. Most girls need to change their pad, tampon, or menstrual cup about 3‒6 times a day.

Aug 14, 2025 · Period changes, such as an irregular menstrual cycle or spotting, might be a sign of an underlying health concern or due to normal hormonal fluctuations.

Our period-absorbing underwear is ultra-absorbent, helps control odor, and wicks moisture to help keep you fresh and dry. Follow our care instructions to keep your undies in tip-top shape.

A period is the part of the menstrual cycle when a woman bleeds from her vagina for a few days. For most women this happens around every 28 days, but it's common for periods to be more or less …