Vasectomy May Put Men At Risk For Type Of Dementia

... Northwestern University researchers have discovered men with an unusual form of dementia have a higher rate of vasectomy than men the same age who are cognitively normal. The dementia is Primary Progressive Aphasia (PPA), a disease in which people have trouble recalling and understanding words. A vasectomy breeches the protective barrier between the blood and the testes, provoking the immune system to produce anti-sperm anti-bodies, which may reach the brain and cause damage. ...