Antibodies to sperm develop in 50 percent of men who have vasectomies. Normally, antibodies protect the body against viruses and bacteria. Sperm antibodies will not affect your general health. But they may lessen the chance of restoring fertility if vasectomy is reversed. That depends on your general health, attitude, and your job.
Most men lose little or no time from work.
A few need a day or two to rest. You will have to avoid strenuous labor or exercise for three to five days. Rare complications may require more days at home. However, prompt medical attention should clear up any problems. The procedure takes about 20 minutes.