Average Menstrual Cycle

Some women have longer periods than others.

Average menstrual cycle. It may vary from cycle to cycle in every woman and may also change over the years. Typically cycles will last two to seven days. Your periods are still regular if they usually come every 24 to 38 days.

Actually the average menstrual cycle length changes with age. For most women the average menstrual cycle is every 28 days. The average cycle is 28 days long.

Regular menstrual periods in the years between puberty and menopause are usually a sign that your body is working normally. The menstrual cycle is the hormonal process a womans body goes through each month to prepare for a possible pregnancy. On average women are in the menstrual phase of their cycle for 3 to 7 days.

Though the average cycle is 28 days long anything between 21 and 45 days is considered normal. At age 20 the average cycle length is typically around 298 days by age 40 the average cycle length has decreased to around 27 days 2. The menstrual cycle is a term used to describe the sequence of events that occur within a womans body as it prepares for the possibility of pregnancy each month.

Scientists tracked the menstrual cycles of over 120000 women using a fertility app. A menstrual cycle is considered to begin on the first day of a period. The cyclical rise and fall of the hormone estrogen prompts the production and growth of oocytes immature egg cells and thickening of the lining of the uterus to prepare for pregnancy.

Monthly or regular periods are a sign your cycle is normal. Menstrual flow might occur every 21 to 35 days and last two to seven days. The length of time from the first day of one period to the first day of the next period normally ranges from 21-35 days.