If the semen is black, it is very likely that it belongs to hematospermia, and the causes may be inflammation, abnormal coagulation function, tumors and trauma, etc. The applied drugs mainly include antibiotics (levofloxacin, etc.), coagulation factors, chemotherapeutic drugs (cisplatin, etc.), as well as antiemetic drugs, etc. The drugs used are antibiotics, commonly used drugs such as levofloxacin. 1. Inflammation: seminal vesiculitis and epididymitis may cause corresponding conditions, which are bacterial infections and can be treated with antibiotics, commonly used drugs include levofloxacin. 2. Abnormal coagulation function: congenital abnormalities in coagulation function can also lead to related symptoms, and can be supplemented with relevant coagulation factors. 3. Tumor: reproductive system tumors can cause peripheral destruction and lead to related symptoms, and chemotherapeutic drugs can be applied, commonly used drugs include cisplatin and so on. 4. Trauma: after trauma, the bleeding of local blood vessels can not be controlled, and hemostatic drugs can be applied appropriately, such as vasopressin and so on. If the semen is black with obvious ejaculatory pain and abnormal erection, you need to consult a doctor for observation and standardized treatment under the guidance of the clinician after diagnosis, so as to avoid delaying the condition.