FertilityEd - During menstruation, the body sheds tissue and blood

The menstrual cycle Office on Women's Health

Is it Normal to have Blood Clots during Menstruation?

What Do Large Blood Clots During a Period Mean? - North Texas Fibroids

How to Remove Menstrual Clots and Restore Fertility

The Menstrual Cycle - Phases, hormones and their functions

Uterine bleeding: how understanding endometrial physiology underpins menstrual health

Menstruation: science and society - ScienceDirect

Period blood color: brown, black, or dark — does it matter?

The menstrual cycle Office on Women's Health

Understanding Fertility: What Happens During Ovulation