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Rare allergies to bodily fluids like semen and cervicovaginal fluid are gaining attention. One woman's near-fatal allergic reaction to semen highlights the seriousness of these conditions, often misdiagnosed or dismissed. Research suggests toluene, a chemical found in higher concentrations in the skin of some individuals, may play a role in some allergic reactions. While treatments exist, such as desensitization therapy for semen allergies, more research is needed to fully understand and address these rare yet impactful conditions.

Prepared by Olivia Bennett and reviewed by editorial team.