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Types of Allergies
Allergy Symptoms
Allergy Treatment
Children and Allergies
Seasonal Allergies
Anaphylaxis
Who Has Allergies and Why
Find an Allergist
ACAAI > Patients & Public > Allergies > Who has allergies and why

What Causes Allergies?

Allergies tend to run in families. If you have allergies, it's very likely that at least one of your parents does too.

Exposure to allergens at times when the body's defenses are weak, such as after an illness or during pregnancy, also may play a role in developing allergies. Although allergies are most common in children, they can occur at any time and any age. Sometimes allergies go away, but they also can come back years later.

Allergy Relief Test

If you or your child has allergies, use the Allergy Relief Self-Test to review your symptoms and see if you need to find relief.

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Find an Allergist

An allergist is a doctor who has the specialized training and experience to find out what causes your allergies, prevent and treat symptoms, and help keep them under control. Find an allergist in your zip code and find relief.

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