Psoriasis is a chronic autoimmune condition in which the body’s immune system mistakenly accelerates the growth of skin cells. Instead of renewing over several weeks, new skin cells are produced within a few days, causing them to build up rapidly on the skin’s surface. This leads to inflammation and the formation of thick, red, scaly patches that may itch, crack, or become uncomfortable.
A genetic tendency often plays an important role, and psoriasis may run in families. However, not everyone with a genetic predisposition develops the condition. Factors such as emotional stress, infections, skin injury, certain medications, smoking, obesity, excessive alcohol consumption, and other environmental influences may trigger or worsen symptoms in susceptible individuals.
Psoriasis is not contagious and cannot spread from one person to another through touch or close contact. The severity and pattern of psoriasis vary from person to person. Some individuals experience occasional mild flare-ups, while others may have more widespread or persistent disease. With appropriate treatment and long-term care, many people can effectively control symptoms, reduce flare-ups, and improve their quality of life.