Abstract
WHAT IS ALREADY KNOWN ABOUT THIS TOPIC? Unprotected oral sex carries a risk of the transmission of sexually transmitted infections (STIs), especially if the individual has poor oral health. WHAT IS ADDED BY THIS REPORT? Most human immunodeficiency virus (HIV) infected men who have sex with men (MSM) had never used a condom when giving oral sex (89.30%, 718/804) or receiving oral sex (90.32%, 709/785). Among MSM with detectable viral loads who had ever received oral sex without a condom, 40.00% reported ejaculation in their partner's mouth. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? Unprotected oral sex is very common among HIV-infected MSM in China. The public health sectors in China should recommend condom use during oral sex among HIV-infected MSM, especially when in-mouth ejaculation is involved.