What is plaque psoriasis?
Plaque psoriasis is caused by an overactive immune system and is the most common form of psoriasis. The overactive immune system causes skin cells to rapidly build up, forming psoriasis plaques. Why some people develop plaque psoriasis and others don’t isn’t fully known, but a family history and environmental factors are thought to play a role.
Common symptoms include:
- Raised, red, silver, or flaky/scaly patches on your skin
- Patches can be itchy and painful
- Patches commonly appear on the knees, elbows, lower back, scalp, and genitalia
- Plaques may also appear on other areas of the body