Menorrhagia is defined as
Ans. c (Increased loss of blood than normal during menstrual cycle). (Ref. Shaw's textbook of Gynaecology 13th ed. 291)A normal menstrual blood loss is 50-80 ml, & does not exceed 100 ml. Menorrhagia is increase in duration & quantity of menstrual loss (> 100 ml).
Heavy menstrual bleeding 
Intermenstrual bleeding
Menses in less than 28 days
Increased loss of blood than normal during menses
Menses every more than 45 days.
Increased loss of blood than normal during menses