After a vasectomy, men still ejaculate the same amount of sperm, but it no longer contains sperm. The vas deferens is blocked, but sperm is still created and absorbed by the body. Couples should use backup contraception until the male is confirmed infertile. The sterility of sperm is tested at set intervals until the count reaches zero. There is a small risk of the tubes growing back together, allowing for pregnancy. Vasectomies are generally safe with few long-term side effects.
Sperm after a vasectomy is virtually unchanged. Although the path of sperm is blocked after this operation, men still ejaculate the same amount of sperm they would have before the surgery. The only difference is that there will be no more sperm found inside this semen.
During a vasectomy the vas deferens, or tube that runs from the testicles to the tip of the penis, is blocked at the entrance so that sperm cannot pass through. Since sperm is generally not added to the sperm until it has traveled further down this tube, the sperm is not blocked from exiting. This allows a man to function sexually and ejaculate normally.
Sperm are still created by the testicles after surgery and are then absorbed into the body. Sperm after a vasectomy comes out as usual. It may still contain sperm that was already present in the vas deferens before surgery for several months after the operation. For this reason, couples are encouraged to use a backup method of contraception until it is confirmed that the male is infertile.
To determine the sterility of sperm after a vasectomy, it is tested at set intervals to obtain a sperm count. At first, several thousand sperm cells can still be found. This number should decrease with each check until the count finally reaches zero. In some cases the vasectomy may not have been successful. If the tube isn’t blocked properly, sperm may still be able to pass.
Although the number of sperm cells within semen after a vasectomy should be zero, occasionally the tubes can grow back together without a man knowing. This means that he may be able to impregnate his partner during intercourse. A man may also be able to reverse his vasectomy. The success of such an operation varies widely from person to person.
Vasectomies are relatively routine operations and there are generally no long-term side effects other than infertility. Pain may occur for about a day after surgery, but this is usually mild and goes away quickly. While rare, there are risks with any operation. These can include a bad reaction from the local anesthesia and swelling of the testicles. Very rarely, sperm that is reabsorbed into the body after a vasectomy can cause an allergic reaction.
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