GENERAL KNOWLEDGE

Detailed explanation-1: -If fertilization does not occur, the endometrium, coupled with blood and mucus from the vagina and cervix (the lower, narrow part of the uterus located between the bladder and the rectum) make up the menstrual flow (also called menses) that leaves the body through the vagina.

Detailed explanation-2: -When you ovulate, a mature egg is released from the ovary and moves into the fallopian tubes, where it is available to be fertilized. If the egg is not fertilized, the lining of the uterus, which has thickened to prepare for fertilization, will be shed through menstruation.

Detailed explanation-3: -In the absence of fertilisation, the corpus luteum degenerates. This causes disintegration of the endometrium leading to menstruation, marking a new cycle.

Detailed explanation-4: -Overview. Amenorrhea (uh-men-o-REE-uh) is the absence of menstruation, often defined as missing one or more menstrual periods. Primary amenorrhea refers to the absence of menstruation in someone who has not had a period by age 15.