Ejaculation of blood is mostly caused by inflammation of the seminal vesicles. Inflammation of the seminal vesicles is mainly caused by three ways, the first is called retrograde infection, which refers to the bacteria through the urethra, and then gradually spread to the seminal vesicles; the second is lymphatic infection, through the lymphatic pathway so that the seminal vesicles are infected; the third is called the bloodstream infection, which refers to the inflammation of other parts of the body, and then inflammation through the bloodstream to reach the seminal vesicles, resulting in seminal vesicle inflammation. The main manifestation of seminal vesiculitis is the ejaculation of blood during ejaculation, which is usually bright red in color, and in some cases, with blood clots. For the treatment of inflammation of the seminal vesicles, the more common is to use antibiotics for treatment, antibiotic treatment above the requirements must be standardized, that is, the medication must be applied in accordance with the course of treatment, it takes 2-4 weeks or so to be able to make the complete cure of the seminal vesiculitis, there are a lot of patients ate a period of time medicine, 1 week or so, feel that he did not have anything to do on the do not eat, which is prone to acute seminal vesiculitis turned into chronic seminal vesiculitis. If the medication is repeatedly ineffective, it is necessary to do a surgery, using vesicoscopy to the location of the seminal vesicles, to see what exactly is the cause of the problem, and to solve the cause of the problem, it is possible.