"immune system reactions
After vasectomy, the testes continue to make sperm. When the sperm cells die, they are absorbed by the body, just as they are in a man who has not had a vasectomy. Sometimes, however, men, following a vasectomy, develop immune reactions to sperm.
Sperm usually do not come in contact with immune cells, so they do not elicit an immune response. But, vasectomy breaches the barriers that separate immune cells from sperm, and men can develop anti-sperm antibodies after the surgery."
This is from the University of Maryland Medicine site.http://www.umm.edu/patiented/article...y_000037_8.htm
It talks about the study in the Netherlands of 700,000 vasectomy patients, 10% (70,000 men) of whom have long term chronic pain.
"Studies are indicating that men younger than their mid-forties who have vasectomies have twice the risk for kidney stones as their peers who have not had vasectomies. The increased risk persists for up to 14 years after the operation. Kidney stones are not life threatening but they can be extremely painful, and just to be on the safe side, men who have had vasectomies should drink plenty of fluids to help prevent them."
This is a link to a Post Vasectomy Syndrome article.http://www.suntimes.co.za/health/lon...ealth/late.asphttp://www.missouri.edu/~cak307/vasect.htm
"With the holes on the tubes bunged up and the testis of a normal healthy man still dedicated to the production of sperm, something has got to give... and it does. The sperm backs up and eventually forms a tooth paste like sludge. as the sperm backs up so does the pressure and blow outs begin to occur along the epididymis. Because the body is not ordinarily exposed to sperm (with leakage after the blow outs) antibodies to the sperm are produced and the problems begin. The sperm cells are actually quite irritating and resistant, they have to be to withstand the hostile environment of someone else's body in a reproductive role.. they were never meant to be out in the blood stream."http://www.diagnose-me.com/cond/C581295.html
"According to Dr. Roberts, "Their patterns of response suggest a cause and effect relationship between vasectomy and various disorders, especially in light of the fact that the majority had enjoyed good health before surgery." [Is Vasectomy Worth The Risk? A Physician's Case Against Vasectomania]"
Just wanted to make clear that I wasn't trying to say that vasectomy isn't right for someone else, it just isn't right for us.
Also, my uncle did have his vasectomy quite a while ago (10-15) years. The two pregnancies took place over a 10 year period with repair in between.