A member asked:

Can an allergy appear randomly at 20 years of age?

7 doctors weighed in across 2 answers

Yes: Allergies can appear at any age.

Answered 7/5/2012

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A few examples: 1) your girlfriend or boyfriend has a cat. You didn't have one growing up. 2) you grew up in southern california but are attending college on the east coast & notice the climate & the trees to be very different. 3) you go to a japanese restaurant where they cook at the table. You eat shrimp, a food that you haven't eaten much in the past. Allergies can appear at age 20 but they're rarely random.

Answered 3/14/2019

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