They can be caused by imbalances or disorders that affect this type of hormones.
Read the full article on: Pre-testicular causes of male infertility ( 28).
By Cristina Mestre Ferrer B.Sc., M.Sc. (embryologist), Jessica García Cataño M.D., M.Sc. (gynecologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist) and Romina Packan (invitra staff).
Last Update: 07/23/2014