Diseases and Injuries
External Cause of Injuries
Drugs and Chemicals
Neoplasms
Azoospermia due to drug therapy
Azoospermia due to obstruction of efferent ducts
Azoospermia due to infection
Azoospermia due to radiation
Azoospermia due to other extratesticular causes
Azoospermia due to systemic disease