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How long does it take from sperm production to ejaculation?

By Emilio Gómez Sánchez B.Sc., Ph.D. (senior embryologist on Next Fertility Murcia).
Last Update: 08/08/2022

Spermatogenesis is the process whereby male reproductive cells are formed, from the immature ones, spermatogonia, until the mature ones, spermatozoa. This complicated process occurs within the seminiferous tubule in the testis and takes about 64-72 days.

Once spermatozoa (sperm cells) have been produced, they leave the testis and travel to the epididymis, where they will acquire the necessary motility in a process that lasts 10 days approximately. Spermatozoa will be stored in the epididymis until they are expelled with ejaculation. When ejaculation starts, sperm travel through the vas deferends and mixes with the seminal fluid that originates in the secretory glands, creating what we all know as semen. Finally, it is expelled through the urethra.

 Emilio Gómez Sánchez
Emilio Gómez Sánchez
B.Sc., Ph.D.
Senior Embryologist on Next Fertility Murcia
Bachelor's Degree in Biology from the University of Seville. PhD in Biology from the University of Valencia. Large experience as an Embryologist Specialized in Assisted Reproduction. Currently, he is the IVF Lab Director of Tahe Fertilidad.
License: 14075-MU
Senior Embryologist. Bachelor's Degree in Biology from the University of Seville. PhD in Biology from the University of Valencia. Large experience as an Embryologist Specialized in Assisted Reproduction. Currently, he is the IVF Lab Director of Tahe Fertilidad. License: 14075-MU.