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After undergoing a vasectomy, semen testing is typically performed to confirm the success of the procedure and ensure that the sperm count is low enough to stop using other forms of contraception. Let’s explore the why, how, and when of semen testing after a vasectomy.
Semen testing is necessary to confirm that the vasectomy procedure has effectively blocked the vas deferens, the tubes that carry sperm from the testicles to the urethra. A low count, or absence, of sperm in the ejaculate confirms that the man is no longer able to get a woman pregnant. Until this testing is successful, it is necessary to use other forms of contraception.
When you come in for the procedure, we will give you a kit to mail a sample to SnipCheck. They are a reputable lab from which we have had reliable results. The cost is $25, if you use the test kit we’ve give you. If your first test shows sperm, they will send a second test at no cost. If the first test shows no sperm a second test is not needed. There are other tests available on the internet that are equally reliable and if you have a different preference, that is not a problem.
It is recommended that you test 12 weeks after vasectomy. This waiting period allows for any residual sperm to be cleared from the reproductive system. Sperm are hardy and can remain living in the vas deferens or prostate for several months. Doing the test earlier increases the risk of having residual sperm still in the system, and needing to repeat the test. Doing the test later means that the benefits of the vasectomy aren’t enjoyed as soon as possible.
You should also have at least 20 ejaculations prior to testing. Ejaculation pushes sperm that are above the separation of the vas deferens out of the system, effectively clearing those sperm out. Many men ask if testing can be done earlier, if this minimum number of ejaculations is met. It is recommended that you wait until 12 weeks to minimize the number of tests that you need to do. Additionally, it is known that the peak incidence of the vas deferens reconnecting is at 8 weeks, so waiting until 12 weeks will increase the security of the testing.
It is important to note that until the semen analysis confirms the absence of sperm, alternative contraception methods should be used to avoid unwanted pregnancies. It is not safe to rely solely on the vasectomy for contraception until the semen testing has confirmed no sperm or a very low count of sperm.
In summary, semen testing after a vasectomy is crucial to confirm the success of the procedure and determine when it is safe to rely on the vasectomy as a form of contraception.
