Men who have red ejaculate are ejaculating blood inside the ejaculate, thus causing the semen to be red, also known as hematosperm. Hemosperm is most commonly seen clinically as a result of vesiculitis, which can cause a patient to have recurrent hematemesis. The patient may also have a cramping discomfort in the lower abdomen, around the anus and other areas. Through routine semen examination, it can be clear that the patient has an inflammatory reaction. For treatment, aggressive antibiotic therapy may be administered. Some patients also need regular ejaculation, through which inflammatory substances are expelled from the body in a timely manner, which will help the patient in the treatment of vesiculitis. In addition to vesiculitis, there are other diseases that can cause red ejaculation.