New Jersey State Board Esthetics Practice Exam

What condition is characterized by severe dry scaly skin due to a lack of sebum?

1. Asteatosis

2. Seborrhea

3. Psoriasis

4. Eczema

The correct answer is: Asteatosis

The condition characterized by severe dry, scaly skin due to a lack of sebum is asteatosis. Asteatosis, often referred to as xerosis or dry skin, occurs when there is insufficient oil production from the sebaceous glands, leading to a lack of moisture and hydration in the skin. This deficiency results in a rough texture and can also cause the skin to become itchy and irritated. This condition typically manifests particularly in areas that are prone to drying, such as the legs and arms, and it can be exacerbated by environmental factors like low humidity. Other skin conditions mentioned do not primarily result from a lack of sebum. For example, seborrhea involves excessive production of sebum, leading to oily skin and possibly dandruff, while psoriasis and eczema are inflammatory skin conditions with distinct underlying causes and symptoms that are unrelated to sebum levels. Thus, asteatosis is the clear choice when addressing skin dryness Linked to lowered sebum production.