Question

what is a menstrual cycle???

Answer 1

It occur in female when the ova don't get sperm then it move out with utrine Wall and some blood from it is known as menstrual flow and this cycle is known as menstrual cycle
First menstrual cycle is called menarch and the last is called menopause

Answer 2

heya friend

menstrual cycle is natural cycle which occurs in female reproductive system .this happens for every 28 days