LAUSR

What is psoriasis and psoriatic arthritis? Psoriasis is a skin condition in which skin cells grow faster than expected. This can leave dry, thick patches on the skin. Plaque psoriasis is the most common form of this chronic condition. It usually affects skin on the elbows, knees, buttocks and scalp. Psoriasis is not contagious so you cannot catch it from another person. While the exact causes are not known, the immune system is probably involved. In addition to having dry skin, up to one out of every three people (approximately 33 percent) living with psoriasis will also develop swollen and painful joints (this is called psoriatic arthritis or PsA). Like psoriasis, symptoms of psoriatic arthritis can range from mild to severe.