PSI Barbering Practice Exam

Where on the body does psoriasis typically occur?

1. Scalp, elbows, knees, chest, or lower back

2. Hands, feet, and between fingers

3. Face and neck areas only

4. Thoracic and lumbar spine

The correct answer is: Scalp, elbows, knees, chest, or lower back

Psoriasis is a chronic autoimmune condition that primarily affects the skin, leading to the rapid growth of skin cells and the formation of red, scaly patches. The areas where psoriasis typically occurs include the scalp, elbows, knees, chest, and lower back. These locations are commonly recognized as potential sites for plaque psoriasis, which is the most prevalent form of the disease. The reasoning behind this involves the fact that these areas have a higher occurrence of skin trauma and are also regions where the skin is subject to friction and irritation, which can trigger outbreaks. The scalp is particularly prone to psoriasis due to its high density of dermal cells, which makes it a common site for the condition. Other choices list areas that may see involvement with psoriasis but are either less common or more specific than the broad range covered in the correct option. For instance, the face and neck areas can experience psoriasis, but it is not as prevalent as the areas identified in the correct answer. The thoracic and lumbar spine, while they might see some involvement, do not reflect the general distribution of psoriasis on the body. Similarly, the hands and feet, as well as between fingers, are indicative of a different form of the disease known as palmoplantar psoriasis, which is