Anaphylaxis After Anal Intercourse With Tolerance By Vaginal Route

Anaphylaxis induced by coitus is an uncommon phenomenon 1, 2. The true prevalence is unknown, but it is believed to affect up to 40,000 women in the United States 3. The clinical features may vary in severity from mild immediate reactions as vaginal itching after coitus to systemic reactions such as systemic urticaria or even anaphylactic shock 1. The main agent involved in the few reported cases is seminal fluid, although cases of hypersensitivity to other agents such as latex, spermicidal agents, foods, drugs or lubricants have been reported.

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