Normal duration of menstrual flow is :: (A) 2-7 days, (B) 7-10 days, (C) 2 days, (D) 5-9 days
Answer is A. Duration of menstruation - 2-7 days Amount of blood loss - 20 to 50 mL with an average of 35 mL. Nearly 70 percent of total menstrual blood loss occurs in the first 2 days.