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Connection between ejaculation and prostate cancer

Two large studies that were done in 2003 and 2004 showed that high ejaculation rates seemed to offer protection against prostate cancer.

The amount of ejaculations included those from sexual intercourse, masturbation and nocturnal emissions (from wet dreams). The one study found that men who ejaculated 21 or more time a month had a 33% decreased chance of developing prostate cancer compared to those who ejaculated 4-7 times a month. The second study showed that men who averaged 4-7 ejaculations a week showed a 36% decreased chance of developing prostate cancer, before the age of 70, as compared to men who ejaculated less than 2-3 times a week.

It's not known how this increased rate of ejaculation leads to a decreased risk of prostate cancer. The theory behind it is that ejaculation expels potentially harmful or irritating substances from the prostate, thereby decreasing the chances of the occurrence of a malignancy.

Persistent ejaculation and prostatitis

One study has found a connection between persistent ejaculations and the occurrence of chronic prostatitis, which is inflammation of the prostate over a period of time longer than 3 months.

Symptoms and signs of chronic prostatitis include the following:

  • Post-ejaculatory pain is a hallmark of the condition.
  • Perineal or pelvic pain without any evidence of a urinary tract infection, which lasts longer than 3 months. 
  • Pain can be present in the perineum, testes, tip of the penis and the pubic or bladder area.
  • Pain which radiates to the back and rectum and makes sitting down uncomfortable. 
  • Arthralgia.
  • Dysuria.
  • Unexplained fatigue.
  • Myalgia.
  • Constant burning pain in the penis.
  • Abdominal pain.
  • Low libido.
  • Urinary frequency.
  • Urinary urgency.
  • Erectile difficulties.
  • Sexual dysfunction.

The reason for this is because persistent ejaculation causes buildup of lactic acid and free radicals. These products are not cleared properly by the liver because its activity is suppressed by stress hormones released during the ejaculatory process. The buildup of these products then leads to inflammation of the prostatic tissue.

The way to manage this issue is to reduce the frequency of ejaculation where possible, take warm baths to help promote blood flow in the pelvic region and to use free radical scavenger supplements such as vitamin C and E.

Masturbation and testicular size

Testicular size can be negatively affected by the following issues:

  • Certain medications such as Propecia.
  • Infection of the testicles and/or scrotum.
  • Alcohol abuse.
  • Increased emotional and physical stressors which cause a reduction in testosterone levels.
  • Advanced age due to decreased blood flow to the pelvis.
  • Any injury to the scrotum.
  • Chronic conditions which cause a reduction in blood flow such as diabetes and hypertension.
  • Mumps.
  • Exposure to harmful toxins such as benzene and BPA containing products.

There are literally over a hundred conditions that can cause testicular atrophy but masturbation is really one activity that one shouldn't worry about causing this issue.

Theoretically, persistent masturbation may lead to a reduction in testosterone levels which does result in shrinkage of the testes and this could be theoretically considered as a side effect of frequent masturbation

In the same breath, though, it should be noted that the above-mentioned issues are more common and if a patient experiences testicular atrophy, then they need to see their family doctor to assess them further.

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