How many days are normal for an aunt’s cycle

Auntie is the common name given to menstruation. The menstrual cycle is about 28 to 30 days for most people, with the shortest period being no less than 21 days and the longest period usually not exceeding about 35 days.
From the first day of vaginal bleeding is the first day of menstruation, to the day before the next menstrual period for a menstrual cycle, most people are about 28 ~ 30 days, the shortest period of time is not less than 21 days, the menstrual cycle is regulated by the hypothalamus – pituitary – ovary axis of the joint role of the cerebral cortex, the hypothalamus, the pituitary gland and the ovaries of any of the links in the occurrence of the obstacle will cause menstrual disorders.
Women should maintain a happy mood and good diet and sleep habits to help ensure a normal menstrual cycle.