Loss of blood from the uterus via the vagina occurring when the women’s level of oestrogen hormones (oestrogens), progesterone hormone or progestogen drugs falls quickly. The withdrawal bleeding that happens at the end of each month’s cycle of combined oral contraceptive pills imitates the woman’s menstrual period but is normally briefer and less in amount.
Uterine bleeding following discontinuation of treatment with cyclic hormone replacement therapy. It is caused by sloughing of the endometrium but is not technically considered menstruation because it is not associated with an ovulatory cycle.
Vaginal bleeding that occurs when there is a sudden decrease in the levels of estrogen, progesterone hormones, or progestogen drugs in the body.
The bleeding that occurs when finishing a monthly supply of combined oral contraceptive pills imitates menstruation but is typically briefer and less intense. Stopping the use of either estrogen-only or progestogen-only preparations also leads to bleeding, which might vary in terms of quantity and duration compared to regular menstruation.