What Causes Blood in Ejaculate?
Hematospermia—medically defined as the presence of blood in semen—poses significant health risks to men. Not only can it impair male fertility, but it may also adversely affect overall physical health; thus, hematospermia warrants prompt medical attention. Its typical presentation includes red or coffee-colored semen; in more severe cases, patients may notice blood streaks or clots in the ejaculate, along with urinary symptoms such as frequent urination, urgency, and dysuria. So, what causes blood-tinged semen? Below, we address this question.

What Causes Blood-Tinged Semen?
The appearance of blood streaks during ejaculation indicates hematospermia. Common underlying causes include urological conditions such as prostatitis, seminal vesiculitis, and orchitis. Therefore, upon noticing hematospermia, men should seek timely evaluation by a urologist. Only after identifying the precise etiology can effective treatment be initiated. In most cases, hematospermia is accompanied by lower urinary tract symptoms—including dysuria, urinary frequency, and urgency. During treatment, patients should increase fluid intake and urinate frequently, avoid prolonged sitting or urinary retention, and maintain regular—but not excessive—sexual activity. Prolonged abstinence is also discouraged, as it may exacerbate symptoms.

Additional Information: What Are the Health Risks of Hematospermia in Men?
1. Infertility
Clinical evidence shows that hematospermia is a common contributor to male infertility. It refers to the presence of blood within the ejaculate, which significantly compromises semen quality and directly impairs sperm function—thereby substantially affecting fertility.
2. Reproductive Tract Infection
Hematospermia commonly arises from inflammatory conditions such as prostatitis or seminal vesiculitis. Inflammation leads to glandular hyperemia and vascular rupture, allowing blood to enter the seminal plasma. If left untreated, these infections may progress or trigger additional infectious complications, increasing the risk of bacterial invasion throughout the male genitourinary system.
The above outlines the primary causes of blood-tinged semen. We hope this information proves helpful.