Why is the blood black?

Menstruation into black consideration and menstrual blood volume and poor discharge, more common in endometrial adhesions, thin endometrium, qi stagnation and blood stasis, cold and malnutrition. If occasionally a menstrual blackness and cold related, temporary observation, drink ginger brown sugar water conditioning, help alleviate symptoms. If more than three consecutive menstrual cycles menstrual blood color black, it is best to go to the hospital for hysteroscopy and ultrasound diagnosis. Endometrial adhesion can be treated by hysteroscopy; thin endometrium can be treated by oral sex hormone drugs; qi stagnation and blood stasis can be conditioned by oral Chinese medicine; malnutrition caused by nutrition should be appropriately increased.