What is the main characteristic of seborrheic dermatitis?

The main characteristic of seborrheic dermatitis is oily scaling. This condition often presents as red, inflamed patches on the skin that are covered with greasy or oily scales. It commonly occurs on areas of the body where oil glands are most active, such as the scalp, face, and chest. The scale can appear yellowish or white and may flake off, creating a flaky appearance.

Seborrheic dermatitis is frequently associated with conditions that involve increased oil production, which is why the presence of oily scaling is a hallmark feature. This greasy scale can sometimes be mistaken for other skin conditions but is distinct due to its oiliness and the areas where it occurs.

Understanding the characteristics of various skin conditions, like seborrheic dermatitis, is crucial for effective identification and treatment in the field of cosmetology.