What defines psoriasis?

Psoriasis is defined as a chronic skin condition characterized by red, scaly patches on the skin. This condition is a result of an overactive immune system that speeds up the growth cycle of skin cells, leading to the buildup of cells on the skin's surface. These patches can be itchy, painful, and can occur anywhere on the body, most commonly on the elbows, knees, scalp, and lower back.

The fundamental nature of psoriasis as a long-term condition sets it apart from other skin issues that may be temporary or triggered by external factors such as allergies, fungal infections, or genetic disorders affecting pigmentation. The chronic and often systemic nature of psoriasis, involving both skin manifestations and possible joint involvement (psoriatic arthritis), highlights its significant impact on affected individuals, making awareness and understanding of its characteristics crucial in both medical and social contexts.