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Sever’s disease is a common heel injury that occurs in children. It is painful and caused by swelling of the…

Scoliosis is an abnormal curve of the spine (backbone). Normally, the spine is straight. With scoliosis, the spine is crooked…

Respiratory syncytial virus (RSV) is a common virus that makes it hard to breathe. RSV is common in children under…

Rosacea is a common skin condition that occurs on the face. It causes redness and small bumps that are similar…

Pulmonary hypertension is an increase in pressure in the blood vessels that carry blood to the lungs. It is a…

Pseudogout is a type of arthritis that causes painful swelling in one or more of your joints. It can lead…

A peptic ulcer is a raw area in the stomach or near the top of the small intestine. The lining…

Pleurisy is a medical condition that affects the lining of your lungs and chest, which can become irritated with the…

Pica is a compulsive eating disorder in which people eat nonfood items. Dirt, clay, and flaking paint are the most…

Peripheral arterial disease is a blood flow problem in the arteries, especially the legs. Claudication is pain in the leg…

Ovarian cancer is cancer in one or both ovaries. Ovaries are small organs located on each side of a women’s…

Paraphimosis is a serious condition that happens when the foreskin gets stuck behind the head of the penis and can’t…

Pancreatitis is inflammation (swelling) of your pancreas. The pancreas is a gland near your stomach and liver. It makes digestive…

Osteochondritis dissecans is a joint problem. It occurs when an area of bone under a piece of cartilage in the…

Arthritis is swelling of the joints. It’s painful and can limit your movement. There are many kinds of arthritis. Osteoarthritis…

A nail infection is caused by a fungus. This infection can happen in toenails and fingernails. It is more common…