[Diagnosis and treatment of obstructive azoospermia].

There are two types of azoospermia, namely, obstructive and nonobstructive azoospermia. Urologists play a more important role in the former, because many patients of the former can expect spontaneous pregnancy after surgical reconstruction of the seminal tract. In this review, we discuss about the causes, diagnosis, and treatment of obstructive azoospermia. The treatment includes vasovasostomy, epididymovasostomy, and transurethral resection of the ejaculatory duct. Surgical outcomes in our series are also described. The urologist must take care that the obstructive-azoospermic patients do not undergo unnecessary assisted reproduction procedures.