Male infertility refers to a man’s inability to cause pregnancy in a fertile female partner after at least one year of regular, unprotected intercourse. This condition results from problems with sperm production, sperm function, or sperm delivery. The male reproductive system must produce healthy sperm in sufficient quantities, and these sperm must be able to reach and fertilise the egg successfully.
Common causes include low sperm count (oligospermia), poor sperm motility (asthenospermia), abnormal sperm morphology (teratospermia), or complete absence of sperm (azoospermia). These issues may stem from hormonal imbalances, varicocele (enlarged veins in the scrotum), infections, genetic factors, lifestyle factors, or blockages in the reproductive tract. Some men may have normal sperm parameters but still experience infertility due to sperm dysfunction or immunological factors.
A comprehensive evaluation is required, as multiple factors often contribute to the condition. Identifying the specific cause enables targeted treatment that may help improve fertility potential. Cases of male infertility can be treatable, and when natural conception proves challenging, assisted reproductive techniques can offer alternative pathways to parenthood.