Prostaglandins: Prostaglandins are hormone-like chemicals that help the uterus contract during menstruation. If their levels are high in the body, uterine contractions become more intense, leading to severe pain.
Uterine contractions: When the muscles in the uterus contract excessively, the flow of oxygen to the blood vessels is temporarily reduced. This causes pain in the muscles.
Endometriosis: This is a condition in which cells found inside the uterus grow outside the uterus (in the ovaries, fallopian tubes, etc.). This causes severe pain during menstruation.
Fibroids: Non-cancerous tumors that develop in the uterus can cause increased pain.
Adenomyosis: This is a condition in which cells grow abnormally in the wall of the uterus.
Pelvic inflammatory disease (PID): Infections in the uterus or ovaries can cause increased pain during menstruation.
