Normally, after a vasectomy, the ultimate goal is to achieve a zero sperm count, that is, azoospermia. However, in some cases, vasectomy fails and sperm production continues, though partially. In the months following a vasectomy, it is normal for sperm to continue appearing in post-vasectomy semen analyses, as they are able to survive for a few months in the seminal ducts until their complete disappearance.
Can oligospermia occur after a vasectomy procedure?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 11/03/2018
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)