Blood in semen not urine

What causes blood in semen? 8 possible conditions

The amount of blood in your semen can vary from a small drop to enough to give your semen the look of blood. The amount of blood in your semen will depend on the cause of your bleeding. In addition to having blood in your semen, you might also experience:

  • pain when ejaculating
  • pain when urinating
  • tenderness or swelling in your scrotum
  • tenderness in the groin area
  • pain in your lower back
  • blood in your urine

Potential Causes of Blood in the Semen

Semen passes along a series of tubes on the way to the urethra for ejaculation. Any number of things can cause blood vessels along this path to break and leak blood into the semen.

In many cases, the exact cause for blood in the semen is never determined. According to Harvard Medical School, most cases of blood in the semen are not serious and can be attributed to six causes: inflammation/infection, obstruction, tumors, vascular abnormalities, systemic factors, or trauma/medical procedures. (Harvard)

Inflammation and Infection

Inflammation of the seminal vesicles is a common cause of bloody semen. Basically, inflammation or infection of any gland, duct, tube, or organ involved in the male genitourinary system can cause blood in your semen. This includes prostatitis (inflammation of the prostate gland), epididymitis (inflammation of the epididymis) and urethritis (inflammation of the urethra). Inflammation can also be caused by irritation from calcui (stones) in the prostate, seminal vesicles, bladder, or urethra.

Sexually transmitted infections like chlamydia, gonorrhea, or herpes can also cause hematospermia. Infections caused by viruses, bacteria, or fungi can also lead to this condition.


If ducts like the ejaculatory duct are blocked, surrounding blood vessels can dilate and rupture. If your prostate is enlarged, it can put pressure on your urethra, and that can cause hematospermia.


Benign polyps or malignant tumors in the prostate, testicles, epididymis, or seminal vesicles could lead to blood in your semen.

Vascular Abnormalities

Vascular abnormalities in the male genitourinary system could explain the blood you’ve seen in your semen.

Systemic Factors

Conditions that affect your whole body can cause blood in your semen. These include hypertension (high blood pressure), hemophilia, leukemia, and chronic liver disease.

Trauma/Medical Procedures

Physical trauma like being hit in your testicles while playing sports can lead to blood in your semen. Trauma can cause blood vessels to leak, and that blood may leave your body in semen. A medical procedure like a prostate exam or biopsy or a vasectomy can cause blood in your semen.

If You Are Over 40

Men age 40 or over have a higher risk of developing illnesses like prostate cancer. Because of this, you should tell your doctor any time you see blood in your semen. Your doctor will want to check for the cause of the blood as soon as possible.

Since I lost my another_catch22 handle...

by catch22_again

Because of a "password reset" that was sent to an Email address that I no longer can access, in conjunction with the Staff refusing to help me reactivate that account and assign my former password that I've used for years with it = I have since given up and have totally lost interest in participating in the JoFo. I have gone as far as just short of providing blood, semen, and urine to prove without a doubt that another_catch22 *IS* my handle = but ultimately, to no avail. I have even reached out to you, Red, and Panda, but you all thought I was an imp and not the real deal = *sigh*

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