If the usual amount of menstrual bleeding, and menstrual bleeding time is normal, and now have menstruation, want to quickly end menstruation, usually do not recommend this. This is because menstruation is irreversible after it has already started, and forcing menstruation to end with hormonal medications may have a negative effect on the body and the thickness of the uterine lining. It is true that there are some special needs, can be during the period, through the use of progesterone, or short-acting oral contraceptive pills, to force the end of menstruation. However, if the menstruation has just started, or if the bleeding has not lasted very long, and the endometrium has not been completely stripped off, forcing the menstruation to end can have a significant negative effect on the thickness of the endometrium.