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How long should you wait for sperm test after vasectomy?

By Rebeca Reus BSc, MSc (embryologist).
Last Update: 11/20/2017

Typically, the second test is done 20 weeks post vasectomy. Semen testing after vasectomy is an essential part of the process, is it confirms the absence of sperm in your semen (azoospermia) and removes the risk of getting an unwanted pregnancy. In fact, you will need to produce various samples during a determined period of time to make sure that the presence of sperm does not reappear in your sample.

 Rebeca Reus
Rebeca Reus
BSc, MSc
Embryologist
Degree in Human Biology (Biochemistry) from the Pompeu Fabra University (UPF). Official Master's Degree in Clinical Analysis Laboratory from the UPF and Master’s Degree about the Theoretical Basis and Laboratory Procedures in Assisted Reproduction from the University of Valencia (UV).
Embryologist. Degree in Human Biology (Biochemistry) from the Pompeu Fabra University (UPF). Official Master's Degree in Clinical Analysis Laboratory from the UPF and Master’s Degree about the Theoretical Basis and Laboratory Procedures in Assisted Reproduction from the University of Valencia (UV).