Occasional bloody semen can usually heal itself in a week. If blood semen exists frequently, it may be due to seminal vesiculitis, seminal vesicle stones, seminal vesicle cancer, etc., which cannot be cured by itself. 1. Occasional hematospermia: it can be cured by a week or so of life conditioning, paying attention to work and rest, and drinking plenty of water. 2. Seminal vesiculitis: mainly caused by inflammation of the lower urinary tract reproductive tract, can be infected through the lymphatic, blood and other channels. With too much spicy and stimulating food, and unclean sex is also related to seminal vesiculitis. It is recommended to go to the male department or urology department in time to determine the type of infection and then treat it. 3. Spermatozoa stones: Spermatozoa stones can cause pain during sexual erection and ejaculation, as well as bloody semen. If the condition is serious, there may be frequent urination, urinary urgency and so on. The stones are often multiple, usually small, with a smooth and hard surface. It is recommended to go to the hospital in time, and remove the stones through vesicoscopy after diagnosis. 4. Seminal vesicle cancer: it is a rare malignant tumor with atypical early symptoms, which is easy to be neglected. It often shows pelvic floor pain, frequent urination, urgency, hematuria and hematospermia. Patients cannot cure themselves and need to be treated. The appearance of hematospermia, need to actively consult the doctor, follow the doctor’s advice reasonable treatment.