Male factor infertility is present in more than 20% of couples presenting with infertility. Endocrinologists often lead the evaluation of Male factor infertility. Endocrine causes contribute almost 20-30% to causes of Male factor infertility. Another 20-30% are post-testicular defects (disorders of sperm transport) which are often management by Urologists /Andrologist and 30-40% which are idiopathic which are ultimately referred to Reproductive Medicine (infertility) specialists.

Endocrinologists are trained in evaluation and management of many causes of Non-obstructive Azoospermia and OAT syndrome (Oligospermia, Asthenospermia and Teratospermia). Primary causes of hypogonadism like Klinefelter syndrome or partial/mild infertility syndromes are typically diagnosed and managed by Endocrinologists. Secondary causes of hypogonadism (Hypogonadotrophic hypogonadism) due to…