In patients with complete retrograde ejaculation, a study has evaluated which method for obtaining sperm is better. The study has revealed better results with testicular sperm.
The reason could be that the high osmolality and low pH of urine are toxic factors for sperm, thus affecting the results.
Read the full article on: IVF with retrograde ejaculation: the secret to achieving pregnancy ( 0).
By Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist).
Last Update: 07/10/2026