Question

Why does mestuation occur

Answer 1

Answer:

Menstruation is a natural process in women which leads to bleeding in women.

Explanation:

•Every month one of the ovary releases a egg to the oviduct. During this period the uterine wall thickens so as to recieve the egg.If the egg fertilizes with sperm it leads to pregnancy otherwise the egg along with the blood vessels and the thick lining sheds.

Answer 2

Explanation:

A period happens because of changes in hormones in the body. Hormones are chemical messengers. The ovaries release the female hormones estrogen and progesterone . These hormones cause the lining of the uterus (or womb) to build up.