Some guys allergic to own semen

Jan 18 2011 - 6:46pm

LOS ANGELES -- Some poor men are apparently allergic to their own semen, developing a mysterious flulike illness after they have an ejaculation, Dutch researchers reported Monday.

The condition, known as post-orgasmic illness syndrome or POIS, has been documented since 2002. Symptoms include feverishness, runny nose, extreme fatigue and burning eyes, which can last for up to a week.

Some physicians had suggested that the disorder was psychosomatic, but Marcel Waldinger, a professor of sexual psychopharmacology at Utrecht University in the Netherlands, and his colleagues demonstrated in two papers in the Journal of Sexual Medicine that the syndrome was allergic in nature and that it might be possible to desensitize men to the problem.

Waldinger and his colleagues studied 45 men with POIS. Thirty-three of the men agreed to undergo a standard skin-prick allergy test using a diluted form of their own semen; 29 of those 33, or 88 percent, showed a positive allergic reaction, indicating an autoimmune response. It is not clear, however, why they exhibited a response to the semen only when it was released from the testicles.

"They didn't feel ill when they masturbated without ejaculating," Waldinger told Reuters. "But as soon as the semen came from the testes ... after that, they became ill, sometimes within just a few minutes."

In a second study in the same journal, Waldinger used what is known as hyposensitization therapy on two of the men, injecting them first with very dilute solutions of their own semen, then over a period of months with more concentrated forms. The team found that, after periods of one and three years, the men showed a significant reduction in their POIS symptoms. The researchers are now treating more patients, Waldinger said.

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