The majority of patients with hemorrhagic sperm are not caused by any serious illness, but they should not be treated as a child’s play, because hemorrhagic sperm may also be caused by some serious diseases. The color change depends on the time of bleeding, if the interval between semen discharge is too long, the blood accumulates in the seminal vesicles for a long time, the iron in the blood is rust-colored after oxidation; if the bleeding is small and unilateral seminal vesicle bleeding, the semen may only be mixed with a little blood; if the long-term repeated hematospermia. The large amount of blood clots deposited in the seminal vesicles will mechanize and slowly form stones. So where does the blood in semen come from? It’s just a lesion somewhere in the sperm pathway, such as bleeding, inflammation, or even a tumor. The most common cause of hematospermia is vesiculitis, which can be caused by inflammation of neighboring organs spreading to the seminal vesicles, resulting in inflammation, swelling, congestion and bleeding of the seminal vesicle wall. Patients who also have a generalized bleeding tendency are likely to have systemic bleeding disorders, such as hemophilia and thrombocytopenia. Sometimes, patients with hypertension may also develop hematemesis. Foreign studies have found that patients with prostate cancer are prone to hematospermia, so it is recommended that men over the age of 40 should be screened for prostate cancer if they develop hematospermia. Therefore, you should neither be overly nervous about hematosperm nor take it lightly, as it can also be a sign of some serious disease, and it is best to get a serious examination from a specialist.