Does It Taste Great? No, It's Less Filling

Are vasectomies 100% guaranteed? Do they change the taste of cum?

No surgery is ever 100% guaranteed, but the failure rate of vasectomies is relatively low. Current studies indicate a failure rate of anywhere from .07% to 5.4%

According to the University of Maryland Medical Center:

Pregnancy rates after a vasectomy are estimated to be very low, about 1 in 2,000. There are two primary reasons for an unexpected pregnancy:

* Residual sperm were still alive when the partners had unprotected sex. This is the most common reason for an unexpected pregnancy after a vasectomy.
* Failure of the Procedure. In some cases it is due to a technical error, but most often it is due to recanalization--when the cut ends of the vas deferens spontaneously reconnect.

It is recommended that you return to the doctor 1 year after the surgery to test for new or residual sperm.

As for the taste, presence of sperm in the ejaculate has less of an effect on taste than does diet. Sperm make up only 2-5% of the content of semen. Semen is composed primarily of fluid from the seminal vesicles (60%). The rest of the fluid is a combination of fluid produced in the prostate, and a mucous produced in the bulbourethral glands (or Cowper's glands).