More than 40 days did not come menstruation how to do

First of all, look at your menstrual cycle, if you come every time menstruation is separated by 60 days and 90 days, then more than 40 days do not come menstruation to continue and so on. Each person's menstrual cycle is very important, especially if you want to be very clear about their menstrual cycle in the past year to half a year, if you usually menstruation is very regular, each time is 20 days to 30 days a menstrual period, need to see what you recently eat medicine, or excessive weight loss, or is too fast to gain weight, may cause menstrual delay. Because pregnancy is more common causes of delayed menstruation, if more than 40 days did not come menstruation, or suggest to find the reason, if you can not find the reason, go to the hospital to find a doctor to help you find the reason.