For more information, visit the official website of Dr. Safia Taieb, Gynecologist-Obstetrician in Monastir, Tunisia:
http://www.dr-safia-taieb.tn
/ cabinetgynecologieobstetrique.drsafiataieb
The menstrual cycle lasts 28 days, and the first day marks the beginning of menstruation. If pregnancy does not occur, the egg is not fertilized by a sperm, the endometrium breaks down, and the blood vessels rupture: this is menstruation. At the same time, the ovaries secrete hormones...