New Mexico Cosmetology Practice Exam

Which condition is characterized by excessive mitosis in the skin?

1. Acne

2. Eczema

3. Psoriasis

4. Dermatitis

The correct answer is: Psoriasis

Psoriasis is a condition characterized by excessive mitosis, or cell division, in the skin. This rapid turnover of skin cells leads to the formation of thick, scaly patches that can be itchy and uncomfortable. In psoriasis, the body's immune system triggers inflammation, which accelerates the skin cell lifecycle. Normally, skin cells take about a month to shed, but in psoriasis, this process can be reduced to a matter of days, resulting in the characteristic scaling and redness associated with the disease. Other conditions like acne, eczema, and dermatitis may involve skin irritation or inflammation, but they do not primarily stem from the excessive production of skin cells in the way psoriasis does. Acne is typically related to clogged pores and bacterial growth, while eczema and dermatitis are often linked to allergic reactions, irritants, or underlying moisture issues.