Menstruation is the most visible phase of the menstrual cycle and its beginning is used as the marker between cycles The average cycle lasts between 24 and 38 days. The first day of menstrual bleeding is the date used for the last menstrual period (lmp).
Menstruation, also known as a period, occurs when your uterus sheds its lining, causing blood and mucus to discharge from the vagina Your cycle prepares your body for a possible pregnancy 1 this usually occurs once a month if you are not pregnant.
It usually happens once every month. 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 35 days and last 2 to 7 days
For the first few years after menstruation begins, long cycles are common. Menstruation is period bleeding, which is casually referred to as “having your period.” this happens monthly (for most females) during your fertile years, except during pregnancy. In general, a normal cycle ranges from 21 to 34 days, and the average period lasts two to seven days Irregularities can be caused by many things, from hormonal conditions to weight changes.