Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. [1]

Jan 11, 2026 · Menstruation (or period) happens monthly. As the uterus sheds its lining, vaginal bleeding follows. Menstrual blood is made of blood and tissue.

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

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 …

Your menstrual cycle begins on the first day of your period. Your cycle prepares your body for a possible pregnancy. The average cycle lasts between 24 and 38 days.

Feb 22, 2021 · Top questions about the menstrual cycle. What is a typical menstrual cycle like? What is a normal amount of bleeding during a menstrual period? Should I track my menstrual periods?

period, epoch, era, age mean a division of time. period may designate an extent of time of any length. epoch applies to a period begun or set off by some significant or striking quality, change, or series of …

Learn everything about the menstrual cycle with Flo: luteal and follicular phases, ovulation, periods, fertility, symptoms, cramps, and much more!

For most women, there is no avoiding the menstrual cycle. From your first period, it becomes a regular part of life, which is why it's important to understand what's happening with your body.

4 days ago · From endometriosis and cervical cancer, to diabetes, vitamin D deficiency and pollution exposure, scientists are finding period blood offers a window into women's wellbeing.