How many days is your aunt's cycle normal?

The menstrual cycle is between 21 and 35 days, which is a normal cycle. Each woman's ovulation time will be advanced or delayed, which will cause menstrual cycle differences. As long as the female menstrual cycle can be between 21 and 35 days, there is no need to do special treatment. Most women's menstrual cycle may be around 28 to 30 days, basically a month to menstruation, so it is called menstruation. If a woman's menstrual cycle is more than 35 days, it may be caused by ovarian endocrine disorders or pregnancy.