Psoriasis is a chronic skin disease that causes raised, scaly patches on the skin due to systemic inflammation. The life cycle of skin cells greatly accelerates in psoriasis, leading to a buildup of dead cells on the surface of the skin. Psoriasis symptoms vary, but common ones include itchy, scaly patches on the knees, elbows, trunk, and scalp. The condition tends to go through cycles, flaring for a few weeks or months, then subsiding for a while. Psoriasis is a common, long-term (chronic) disease with no cure.
The exact cause of psoriasis is unknown, but it is believed to be an immune-mediated disease. Genetics and environmental factors are also thought to play a role. Common triggers in people with a genetic predisposition to psoriasis include infections, cuts or burns, and certain medications. Inflammation caused by psoriasis can impact other organs and tissues in the body, and people with psoriasis may also experience other health conditions.
Treatments are available to help manage psoriasis symptoms, and your treatment plan will depend on the type and severity of the disease. Most forms of psoriasis are mild or moderate and can be successfully treated with creams or ointments. Managing common triggers, such as stress and skin injuries, can also help keep the symptoms under control.
