Sore may also be found elsewhere on the body (such as the mouth and throat).
Male genital sores can be caused by many different things. Those most concerning are caused by sexually transmitted infections (STI). For example, genital herpes simplex, syphilis, chancroid, granuloma inguinale, and lymphogranuloma venereum can cause ulcers on the genitals.
Treatment will depend on the underlying cause and may include antiviral medicines and antibiotics. Your doctor may ask you to avoid sexual activity or use a condom for a while, depending on your diagnosis.
Link RE. Cutaneous diseases of the external genitalia. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 13.
Workowski KA, Berman S; Centers for Disease Control and Prevention (CDC). Sexually transmitted diseases treatment guidelines, 2010. MMWR Recomm Rep. 2010;59:1-110.
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Bellevue, Washington; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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