This document summarizes a presentation on male infertility given by Dr. Sandro Esteves. It discusses diagnosis of male infertility through semen analysis and tests of sperm quality. It outlines both medical and surgical treatment options, finding that while antioxidants may help, most empirical medical treatments are not effective. Varicocele surgery is shown to improve natural and assisted pregnancy rates. The document also reviews sperm retrieval techniques for assisted reproduction and finds better outcomes with obstructive versus non-obstructive causes of azoospermia.