Male Fertility Factors
IVF was developed for female fertility initially. Due to Assisted Reproductive Technology (ART) requiring a minimum number of quality spermatozoa, IVF has been gradually applied to male factors. Male fertility factors could be can be low sperm count (oligozoospermia), low sperm motility (asthenozoospermia), not proper shape and sperm features (teratozoospermia), auto immune self-body reaction against sperm (anti-sperm antibody), congenital absence of ducts in reproductive organs, no sperm in ejaculate (azoospermia) and much more.
As it is possible to select a few good spermatozoa with new assisted reproductive techniques, so it is easy to help the male with fertility problems. The limitation is the real azoospermia case in which due to mutations on Y chromosome and failed spermatogenesis. But even in this case we could help with donor sperm.