These conditions may have an organic cause or a psychological component. Sex therapy has been effective in treating the latter. Buildup of Sperm Antibodies. Occasionally a man suffers an injury or infection that allows the sperm to enter the surrounding tissue where they are killed by his own antibodies. If the man's injury or infection can be treated, his own antibodies should cease attacking his sperm.
Some women are allergic to sperm and develop antibodies to fight it.
This allergy can be somewhat alleviated by using a condom during intercourse for a while, then when her antibodies have lessened, initiate sex without a condom at the time of ovulation. If a man's testicles did not descend into the scrotal sac before puberty, sperm production will be affected. The testicles function at a slightly lower temperature than the rest of the body's organs and need to be in the scrotal sac to produce sperm. Hormone therapy or surgery can make the testicles descend, but it is best done in childhood. When abnormalities in the testicles themselves affect sperm production, these usually cannot be surgically corrected.