Aunt generally refers to the menstrual blood, the menstrual blood black color is considered to be polycystic ovary syndrome, cervicitis, uterine adhesions, etc., need for different causes to be treated accordingly. 1. Polycystic ovary syndrome: If polycystic ovary syndrome causes low menstrual flow and black color, you need to follow the doctor’s instructions to use short-acting compound oral contraceptives, such as compound cyproterone acetate, compound methyl ethinyl ketone tablets and so on to be treated. 2. Cervicitis: for cervicitis caused by low menstrual flow black, need to target the pathogen medication, if it is caused by Neisseria gonorrhoeae infection, the patient needs to comply with the doctor’s instructions with ceftriaxone sodium, cefazoxime and other antibiotics; if it is Chlamydia trachomatis infection caused by cervicitis, you need to comply with the doctor’s instructions with levofloxacin, moxifloxacin and other antibiotics. 3. Uterine adhesion: If the menstrual blood is black and low in volume due to uterine adhesion, according to the condition, it may need to perform uterine adhesion detachment surgery, and sometimes it can be combined with the use of gonadotropin releasing hormone treatment, such as gonadorelin, leuprolide, and so on. It is recommended that patients need to consult a doctor in time when they have black menstrual blood and low menstrual blood volume, the doctor will choose the appropriate treatment for the cause, and at the same time, patients also need to pay attention to dietary regulation.