Health Topics A-Z

Psoriasis is a skin disease that causes itchy or sore patches of thick, red skin with silvery scales. The patches usually appear on the elbows, knees, scalp, back, face, hands and feet, but they can show up on other parts of the body.

Refractive errors are common eye conditions that affect how clearly a person sees. These include nearsightedness, farsightedness, astigmatism, and presbyopia.

Respiratory distress syndrome is a newborn breathing condition caused by a lack of surfactant in the lungs.

Restless legs syndrome is a neurological condition that causes an irresistible urge to move the legs, often accompanied by uncomfortable sensations. 

Retinal detachment is a serious eye emergency that can cause permanent vision loss if not treated quickly.

Rheumatoid arthritis is a long-lasting autoimmune disease that mainly affects the joints. With current treatments, many people with rheumatoid arthritis can lead active, productive lives.

Rosacea is a long-term inflammatory skin condition that causes reddened skin and a rash, usually on the nose and cheeks. It may also cause eye problems. 

Sarcoidosis is a complex inflammatory disease in which groups of immune cells form small clusters called granulomas in various organs of the body.

Schizophrenia affects how a person thinks, feels, and behaves. People with schizophrenia may seem like they have lost touch with reality, which can be distressing for them and for their family and friends.

Scleroderma is an autoimmune disease. It causes inflammation and thickening in the skin and other areas of the body and organs.