Milady Cosmetology Practice Exam 2025 – Complete Study Resource

Seborrheic dermatitis is characterized by inflammation of the sebaceous glands, leading to symptoms such as scaling, crusting, and redness. This condition often occurs in areas rich in oil glands, such as the scalp, face, and along the sides of the nose. The inflammation results in an overproduction of oil, which mixes with dead skin cells, forming scales that can appear greasy or waxy.

The skin may also appear irritated and red, and in some cases, it can lead to the formation of yellowish or white crusts. This condition is particularly common in infants, often referred to as cradle cap, and can also affect adults, especially those with underlying health conditions.

Other options describe different conditions that do not directly involve the inflammation of sebaceous glands in the same way. For example, psoriasis is an autoimmune condition that results in rapid skin cell turnover leading to thick, red patches with silver scales, but it does not specifically involve the sebaceous glands. Asteatosis refers to dry skin with a lack of natural moisture and oil, while contact dermatitis is an allergic or irritant reaction to a substance, resulting in inflammation but not specifically related to sebaceous gland activity.