Use of ultrasonography in the evaluation of the infertile man.

Transrectal ultrasonography (TRUS) is a modality that most urologists are familiar with in the interpretation of prostate anatomy and pathology. Understanding the anatomy and pathology of the genital ductal system will help in the diagnosis of disease entities related to male infertility. Familiarity with both scrotal and transrectal ultrasound is vital to the understanding and diagnosis of treatable causes of male infertility.