What is Male Infertility?

Male infertility refers to a man's inability to cause pregnancy in a fertile female after one year of regular, unprotected intercourse. It accounts for about 40–50% of all infertility cases worldwide. Key causes include low sperm count, poor sperm motility, abnormal morphology, or blockages in the reproductive tract. Conditions like azoospermia (no sperm in ejaculate) and varicocele are common contributors.