According to experts, it becomes noticeable after the age of 40 due to a decline in testosterone production. This loss of testosterone can lead to a decreased ability of the body for producing sperm cells and obtaining and/or maintaining an erection. All this makes the conception process longer and, when pregnancy is achieved, there's an increased risk of miscarriage.
When does sperm count decrease with age?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 02/05/2018
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)