Women’s normal menstruation is dark red, sticky, no clots, menstruation black with clots, usually the symptoms of menstrual disorders, the reasons are as follows: 1, endocrine disorders lead to, women irregular work and rest, often stay up late, lack of sleep, resulting in physical fatigue, immune system decline. Some women have endocrine abnormalities due to prolonged depression, depression, anxiety and tension, which are the main factors leading to irregular menstruation, reduced menstrual volume and dark color. 2, organic lesions, inflammation of the reproductive organs, tumors and developmental abnormalities, abnormal thyroid and adrenal functions can also lead to dark color menstruation with blocks. 3, the body is attacked by cold and improper diet, women are cold, especially during menstruation Cold attack, and a large amount of spicy food, excessive dieting caused by malnutrition, iron deficiency in the body will lead to black menstruation.