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How long do sperm cells live for?

By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 08/03/2022

The half-life of spermatozoa is between 2 and 5 days from the time they are ejaculated by the penis into the female reproductive tract. Inside the vagina and uterus they find the optimal conditions of humidity and temperature they need to survive. On the other hand, sperm that are ejaculated outside die quickly within a few minutes.

In general, sperm have a higher fertilization capacity within 24-48 hours after ejaculation.

 Zaira Salvador
Zaira Salvador
B.Sc., M.Sc.
Embryologist
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)
License: 3185-CV
Embryologist. 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) License: 3185-CV.