Genetic Factors

Studies conducted in identical twins suggest that genetics play a major role in the development of atopic dermatitis. In one study, the identical co-twins of the person with atopic dermatitis (i.e. the siblings who shared 100% of the same genes) were seven times more likely to develop atopic dermatitis relative to the general population.1

That said, environmental factors also play an important role in the development of atopic dermatitis; just because a person has atopic dermatitis does not mean that their children certainly will.

1. Thomsen SF. Allergy Asthma Proc. 2007;28(5):535-9.

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