How many days is the normal number of menstrual days

The term “menstrual period” generally refers to a woman’s period. Generally speaking, a woman’s normal menstrual cycle lasts from 21 to 35 days, and menstruation can last from 2 to 8 days, with an average of 4 to 6 days.
Under the action of sex hormones produced by the ovaries, the endometrium of a woman’s uterus periodically proliferates and sloughs off, and the sloughing off of the endometrium causes menstruation. Menstruation is usually a cycle of 21 to 35 days, with a certain rhythm, and usually lasts from 2 to 8 days on the arrival of menstruation, with an average of 4 to 6 days, during which the amount of bleeding is 20 to 60 ml.
A menstrual cycle that lasts less than 21 days or more than 35 days is considered abnormal, as is a menstrual period that lasts more than 8 days or less than 2 days. If menstruation is early or delayed, you need to go to the hospital in time, under the guidance of the doctor to clarify the specific cause of the disease, and take a reasonable way to intervene.