infertile

infertile /infur″təl/ [L, in, not, fertilis, fruitful] , denoting the inability to produce offspring. This condition may be present in one or both sex partners and may be temporary and reversible. The cause may be physical, including immature sexual organs, abnormalities of the reproductive system, hormonal imbalance, and dysfunction or anomalies in other organ systems, or it may result from psychological or emotional problems. The condition is classified as primary, in which pregnancy has never occurred, and secondary, when one or more pregnancies have occurred. Compare sterile.