There are many reasons that cause patients to experience bleeding ejaculate symptoms, mainly including inflammation, tumor, trauma and so on. 1. Inflammation: it is a common cause of blood semen in clinic, for example, the mucous membrane of seminal vesicle gland of patients with vesiculitis is inflamed and swollen, when ejaculating, patients can not only feel the pain, but also the semen may bleed because of the constant impact on the damaged mucous membrane, so there will be blood in the ejaculated semen. 2. Tumor: If there is a tumor in the way of semen flow, the tumor not only has the possibility to bleed by itself in the process of growth, at the same time, the tumor may also be damaged in the ejaculation of semen and lead to bleeding, therefore, the patient will have blood mixed with the semen when ejaculating. 3. Trauma: If the patient has trauma to the mucous membrane of the penis and other parts of the body, it can also lead to such symptoms. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.