Why does semen have blood streaks

Patient's question:

Urine is yellow, post-coital semen contains red blood streaks for 30 days

Doctor's answer:

Ejaculate containing blood is called hematospermia. If the semen appears entirely light red, partially light red, or coffee-colored, it indicates the presence of blood, as normal semen should not contain blood components. The factors or causes of hematospermia include:
(1) Inflammation of the reproductive tract, such as prostatitis, seminal vesiculitis, urethritis, epididymitis, prostatic calculi of the spermatic cord, and ureteral-bladder calculi.
(2) Obstruction of the seminal tract and cysts.
(3) Tumors and vascular abnormalities.
(4) Systemic factors: hypertension, hemophilia.
(5) Injury to the reproductive tract.
It is recommended that you visit our department of reproductive infections for consultation. Avoid excessive sexual activity, maintain regular bowel movements, and undergo scientific testing to identify the underlying cause. Targeted treatment based on the identified cause can completely cure the condition.