Is it normal to have fifteen menstrual cycles in a year?

Patient's question:

No

Doctor's answer:

Hello, generally speaking, the menstrual cycle is 30 days, but it can be 7 days earlier or later, that is, 23 days to 37 days. If it does not accompany excessive or insufficient menstrual flow and there is no dysmenorrhea, it is also considered normal. Calculating this way, it is acceptable to have 10 to 15 menstrual periods per year on average.