Seborrheic Dermatitis | Overview

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What is seborrheic dermatitis?

Seborrheic dermatitis is a common condition that makes the skin look greasy, scaly and flaky. It usually affects the scalp. In adolescents and adults, seborrheic dermatitis is commonly called "dandruff." In babies, it is known as "cradle cap." Seborrheic dermatitis can also affect the skin on other parts of the body, such as the face and chest, and the creases of the arms, legs and groin. 

How common is seborrheic dermatitis?

Seborrheic dermatitis is common in babies younger than 3 months of age and in adolescents and adults. In adults, it's more likely to affect men than women.

Written by familydoctor.org editorial staff

Reviewed/Updated: 04/14
Created: 07/95

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