This issue of Medical Clinics of North America, guest edited by Robert E. Brannigan, MD, is devoted to Urology. Articles in this outstanding issue include: Prostate Cancer Screening; Treatment Modalities and Outcomes for Prostate Cancer; Kidney, Ureteral, and Bladder Cancer: A Primer for the Internist; Testicular Cancer: Epidemiology, Diagnosis, and Treatment; Urinary Stone Disease: Diagnosis, Medical Therapy, and Surgical Management; Male Voiding Dysfunction, BPH, and Urinary Retention; Female Voiding Dysfunction and Urinary Incontinence; Penile and Urethral Reconstructive Surgery; Male Infertility Diagnosis and Treatment in the Era of IVF/ICSI; Sexual Dysfunction: Behavioral, Medical, and Surgical Therapies; Hypogonadism: Therapeutic Risks, Benefits, and Outcomes; Cutaneous Diseases of the External Genitalia; Urological Emergencies; Telemedicine: Early Experience in the Urology Clinic; and Men's Health Programs: The Intersection of Internal Medicine and Urology.