A 20-year-old man is evaluated in a sexual health clinic for a 1-week history of anal discomfort and tenesmus. In addition, in the past two days, he noted yellow-white rectal discharge, diarrhea, and abdominal cramping. He denies fever, chills, urethral symptoms, bloody stool, or other symptoms. He engages in insertive and receptive anal intercourse using condoms only occasionally. He is diagnosed with proctocolitis.
What are the most common infectious pathogens that cause proctocolitis?
Figure 1. Proctocolitis
This illustration shows the regions involved with proctitis (most distal 10 to 12 cm) and proctocolitis (the region involved with proctitis extending to the region that involves the distal sigmoid colon.
Illustration: Cognition Studio, Inc. and David H. Spach, MD
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Question Last Updated
March 13th, 2025
March 13th, 2025
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