Patients with black blood clots during menstruation are considered to be a possible normal physiological phenomenon. Menstruation is a cycle of ovulation and endometrial exfoliation in female physiology, which is clinically manifested by menstrual blood, which is not only blood, but often accompanied by aging epithelial cells of the vagina and exfoliated fragments of the endometrium, etc. There may be occasional black blood clots, which are normal physiological manifestations and need not be overly concerned. However, if black blood clots appear frequently without relief, or are accompanied by other symptoms, they can be considered to be due to pathological causes. Generally speaking, Chinese medicine considers black blood clots as a manifestation of Qi stagnation and blood stasis, usually due to cold, emotional impact, etc. In Western medicine, it may be due to irregular bleeding or abnormal blood clotting, usually seen in the stimulation of birth control devices, menstrual disorders caused by various factors, etc. It should be combined with the specific causes: a. Traditional Chinese medicine: 1. Cold: If the patient does not do a good job of keeping warm when the menstruation comes, or ingest cold food such as chilled fruit, ice cream, ice drinks before the menstruation, causing the body to get cold. If the cold enters the body, it may cause the menstrual blood to run poorly and eventually stagnate into a dark blood clot that flows out of the vagina. Usually, patients need to keep their clothes warm, reduce the intake of cold food, and drink warm water in moderation to promote the discharge of menstrual blood. If the symptoms cannot be relieved or are accompanied by severe dysmenorrhea, it is recommended to seek medical advice and take treatment such as Shao Abdominal Stasis Soup as prescribed by the doctor. 2, emotional impact: Chinese medicine believes that depression, irritation and other emotions can affect the flow of Qi and blood, resulting in stagnation of menstrual blood in the uterus and poor outflow, resulting in clots and black color. In order to relieve the abnormal menstrual blood, patients should maintain emotional stability after the menstrual flow, so that the qi and blood in the organism can be harmonized. You can follow the doctor’s prescription to take prolotherapy pills and Yimoucao cream to dredge the liver, nourish the blood and regulate menstruation, thus relieving the symptoms. Second, Western medicine: 1. IUD stimulation: If the patient has a IUD placed in the uterus, it may cause endometrial congestion, necrosis, superficial ulceration without healing due to mechanical compression of the IUD, which in turn causes endometrial damage or endometrial atrophy symptoms, and the patient may experience reduced menstruation, black blood, blood clots and other abnormalities. Usually, when the patient’s body adapts to the device, the symptoms will recover on their own, but there are also patients with serious conditions, it is necessary to promptly seek medical attention to remove the device; 2, menstrual disorders: excessive fatigue, poor sleep quality and other factors can trigger menstrual disorders, patients have back pain, abdominal pain, menstrual blood volume, black blood clots and other performance, if the symptoms are serious need to promptly seek medical attention, the use of ibuprofen to relieve pain, or follow medical advice to take If the symptoms are serious, the patient should seek medical advice and use ibuprofen for pain relief or take estrogen and progestin as prescribed by the doctor as single or combined treatment to achieve the effect of endocrine regulation. In addition, in daily life, it is recommended that women pay attention to rest, appropriate exercise, and maintain physical health, which has a certain effect on the relief of symptoms; 3, miscarriage: female patients suddenly appear menstrual blood, and black blood clots, need to be alert to the possibility of miscarriage. Usually the patient has a history of sexual life without contraception, bleeding accompanied by obvious abdominal pain, dizziness, fever and other uncomfortable symptoms, the patient may be mistaken for menstruation, should promptly go to the hospital with progesterone and other drugs, if necessary, the need to clean the uterus by way of surgery; 4, ectopic pregnancy: the sudden menstruation of patients with black blood clots may also be irregular bleeding caused by ectopic pregnancy, if the blood in the uterus or vagina for a long time, it can manifest as black blood clots and make the patient mistake it for menstruation, which is related to contraception, tubal disease, endocrine abnormalities and other factors. For treatment, patients need to take medication such as methotrexate as prescribed by the doctor or perform tubal surgery. 5. Pelvic inflammatory disease: Patients with typical symptoms such as increased menstrual flow, black color, blood clots, lower abdominal pain and fever during menstruation can be considered as pelvic inflammatory disease, which may cause recurrent inflammation if treatment is not carried out in time. Patients are advised to go to the hospital to improve the examination. In mild cases, treatment with drugs such as levofloxacin and metronidazole is required, and in severe cases, treatment with drugs such as amoxicillin and ampicillin, combined with minocycline and doxycycline is required. In addition, in the case of ineffective drug treatment, patients need to undergo surgery.