I got pregnant after having a vasectomy.

In order to prevent pregnancy, many men have tried many contraceptive methods, but ultimately they still choose to use sterilization as the method of contraception. However, many people are confused as to why they are still pregnant even though they have been sterilized. In fact, there are many reasons for this phenomenon. It may be that the operation was unsuccessful, or there may be residual sperm in the semen, etc., which can cause women to become pregnant again.

The main reasons for having a baby after a vasectomy include:

(1) Surgery failure:

During the operation, the vas deferens is not tied tightly enough to close the lumen, or the ligation is too tight, causing the walls of the vas deferens on both sides of the ligation to rupture, so that the two ends remain open and can easily anastomose and reopen by themselves. Surgical errors are also inevitable. Although this situation is rare, it can occur occasionally. It is mainly caused by the doctor's lack of technical experience, and the patient's local anatomical structure variation may also be part of the reason.

(2) Residual sperm:

There may be residual sperm in the semen of men who have undergone sterilization surgery. Generally, after many ejaculations or 2 to 3 months after the operation, there will be no sperm in the semen. However, in some individual cases, sperm in the semen can exist for more than half a year. Although residual sperm treatment techniques (such as injection of spermicidal drugs into the seminal vesicle) are taken very seriously during the operation, the occurrence of residual sperm cannot be completely avoided. Therefore, men who have undergone vasectomy should not take it lightly and should take other contraceptive measures for a period of time. They can only give up other contraceptive methods after repeated examinations of the semen have confirmed that there is no sperm.

(3) Recanalization of ligation site:

After a period of time, in extremely rare cases, the vasectomy of a man who has undergone vasectomy may have a chance to be reopened through surgical anastomosis, even if the operation fails. After ligation, the two ends of the vas deferens can be reconnected through the proliferation of epithelial cells; they can also be reconnected when the hematoma gradually becomes organized or inflammation occurs. Very tiny sperm can pass through the tiny cavity after recanalization without obstruction.

Therefore, once this situation occurs, don't complain too much or keep nagging about it. It may not be caused by your wife's "affair". You should still face the reality, take measures as soon as possible, and check whether there are sperms in your semen.

Of course, this kind of examination is definitely not to judge the source of the wife's pregnancy from a moral perspective, but to find the medical reason for pregnancy after vasectomy. On the one hand, this is done to serve as a basis for reselecting contraceptive measures, and on the other hand, it can indirectly verify the wife's "innocence" and thus eliminate possible misunderstandings and frictions.