The menses phase: This phase begins on the first day of your period. It's when the lining of your uterus sheds through your vagina if pregnancy hasn’t occurred. Most people bleed for three to five days, but …

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 …

Dec 5, 2025 · menstrual cycle, recurring fluctuations in hormone levels that produce physical changes in the uterus and ovaries to prepare the female body for pregnancy. In adult women, the menstrual …

Apr 22, 2023 · What's the menstrual cycle? The menstrual cycle is the monthly series of changes the body goes through to prepare for pregnancy. Each month, one of the ovaries releases an egg. This …

Sep 22, 2025 · Understanding your symptoms can help you pinpoint your menstrual cycle phase and better understand your body's changing hormone levels. The menstrual cycle starts on the first day …

Feb 29, 2024 · Menstruation (or period) happens monthly. As the uterus sheds its lining, vaginal bleeding follows. Menstrual blood is made of blood and tissue.

Sep 4, 2025 · Menstruation (period blooding) is when the uterus lining sheds and leaves the body as blood, typically lasting three to seven days each month. You can manage menstrual pain and …

Jan 13, 2025 · Throughout a monthly menstrual cycle, your body makes different amounts of chemicals called hormones to prepare for pregnancy. These changing hormone levels can cause menstrual …

Dec 2, 2016 · Menstruation (pronounced men-stroo-EY-shuhn) is normal discharge of blood and tissue from the uterine lining through the vagina (see diagram) that occurs as part of a woman's monthly …

Menstruation is one part of a woman's cycle when the lining of the uterus (endometrium) is shed. This occurs throughout a woman's reproductive life. With each monthly cycle, the endometrium prepares …