New York State Barber Practice Exam 2026 - Free Barber Licensing Practice Questions and Study Guide

Seborrheic dermatitis is characterized by an abnormal secretion of oil, which leads to the development of flaking or greasy scales on the scalp and other parts of the body. The condition is often associated with an increase in the production of sebum, which forms scales that can appear either dry and flaky or greasy and yellowish. A common symptom is the presence of these oily flakes that are often seen on the scalp, which matches the characteristics outlined in the answer.

Other symptoms, while they may occur, are not as definitive for seborrheic dermatitis. For instance, a dry scalp without flakes would not align with the primary features of this condition, which typically involves some degree of flaking. An itchy or burning sensation may occur but is not the hallmark of seborrheic dermatitis and can be associated with various skin conditions. Hair loss in patches suggests alopecia areata or other conditions rather than seborrheic dermatitis, which typically does not cause patchy hair loss. This understanding highlights the significance of flaking or greasy scalp in identifying seborrheic dermatitis.