If you are thinking about sperm banks, vasectomy may not be right for you now. Before the operation, you may be given a mild sedative to relax you. When the doctor injects the local anesthetic into the skin of your scrotum, you will feel some discomfort. After the anesthetic takes effect, you should not feel any pain. All surgery involves some risk, but the chance of serious problems is small with vasectomy.
Some medical problems can occur.
However, these problems don't happen often and usually disappear with simple treatment. You may have bleeding under the skin that might cause swelling or bruising. If sperm leak from the vas into the tissue around it, you might feel a small lump, but this is not usually troublesome. Occasionally, this may need surgical treatment. A vasectomy can fail if the tubes were not completely sealed off during surgery.