How long do periods last
The duration of a girl's menstrual cycle, the time from the start of her period to the end of her period, usually begins with a decrease in hormones and shedding of the uterine lining and ends with an increase in hormones and the repair of the uterine cavity with a new uterine lining before the end of the menstrual cycle. This process takes about 3-7 days, so the duration of your period is about 3-7 days.
If the period lasts less than 3 days, it is usually accompanied by a decreased menstrual flow, which can be caused by low estrogen levels, anemia, and other causes.
If the period lasts longer than 7 days, it is usually accompanied by heavy menstrual flow, which may be caused by endocrine disorders, uterine fibroids, endometrial polyps and other reasons.
