The endometrium shed by menstruation is usually condensed flesh-like tissue that floats on the surface of the water when washed, or may not be visible if the amount of menstrual blood is high. Women should take rest and adjust their diet during menstruation. Women’s menstruation is mainly caused by the cyclical shedding of the endometrium. Generally, women will see dark red blood clots in the form of flesh-like tissues, which will float on the surface of the water after being washed with water, and the basic shape of the endometrial tissue will also be seen. During menstruation, women should ensure adequate rest and should not stay up late or exercise strenuously. In addition, women during menstruation should also eat a light diet with balanced nutrition. The endometrium shed during menstruation is mainly flesh-like tissue, and women should adopt healthy habits during menstruation.