What is psoriatic arthritis? It can occur in people who have psoriasis (scaly red and white patches). It affects the joints and areas where tissues attach to bone. Rosacea is a long-term skin condition that causes reddened skin and a rash, usually on the nose and cheeks. Learn symptoms and possible causes. Psoriasis is a skin disease that causes red, scaly skin that may feel painful, swollen, or hot. Learn more about the types and what causes psoriasis. Psoriasis can cause significant discomfort and interfere with basic functions, including work and sleep. Medical care can be expensive. Also, the scaly patches of skin can make some people feel self-conscious about their appearance, which can lead to depression. Treatment can help reduce the symptoms of psoriasis, however. The NIAMS Community Health Clinic is a clinical research site where NIAMS researchers provide rheumatology specialty care, gather health information to answer research questions about rheumatic disease in underserved local communities, and provide scientifically based health information on rheumatic, musculoskeletal, and skin diseases that affect the community. Psoriatic arthritis can occur in those who have psoriasis, often causing joint pain & swelling. Learn about the symptoms & risk factors for psoriatic arthritis. Psoriasis is a skin disease that causes red, scaly skin that may feel painful, swollen, or hot. Learn more about the types and what causes psoriasis. Psoriasis is a skin disease that causes red, scaly skin that may feel painful, swollen, or hot. Learn more about the types and what causes psoriasis. Psoriatic arthritis can occur in those who have psoriasis often causing joint pain & swelling. Learn about the symptoms & treatment for psoriatic arthritis. Psoriatic arthritis can occur in those who have psoriasis, often causing joint pain & swelling. Learn about the symptoms & risk factors for psoriatic arthritis.