What causes dermatitis?

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    Last Updated: May 16, 2025

    Dermatitis can be caused by both endogenous factors, like eczema and stasis dermatitis, which originate within the body, and exogenous factors, like irritant and allergic contact dermatitis, which result from external substances.

    Dermatitis can be caused by endogenous (within the body) or exogenous (outside the body) factors. Endogenous dermatitis involves a pathology within the body. Examples are eczema and stasis dermatitis. On the other hand, exogenous dermatitis is precipitated by contact with substances outside the body. Examples are irritant contact dermatitis, allergic contact dermatitis, and photosensitive dermatitis.[1]