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Diseases and Conditions

Find doctor-approved information about symptoms, causes, diagnosis, treatment and prevention of common diseases and conditions.

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  • Hand Massage to help pain in the finger joints.

    Scleroderma

    Scleroderma is a rare autoimmune disorder. There are 2 types of scleroderma. One type affects the skin. The other type…

  • Schizophrenia

    Schizophrenia is a mental illness that interferes with the way you think, feel, and behave.

  • Young boy with skin rash covering his chest and arms

    Scarlet Fever

    Scarlet fever is a bacterial infection that usually effects children between the ages of 5 and 15. It can be…

  • Lung Illustration

    Sarcoidosis

    Sarcoidosis is a disease in which immune cells form small lumps, called granulomas, in your organs, often in the…

  • Stethoscope wth rotavirus sign

    Rotavirus

    Rotavirus is a highly contagious infection commonly affecting babies and young children. A rotavirus vaccine offers some, but not full,…

  • Young Woman with Perfect Skin and Skin Problem. Unhealthy and Healthy Skin After Treatment.

    Rosacea

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

  • Ringworm on a man’s wrist

    Ringworm

    Ringworm is a skin infection that makes a rash shaped like a ring. The rash can occur different places on…

  • A baby lays on a blue blanket with his legs and feet visible. Rickets is a rare disorder that affects the bones, causing them to soften and break easily. It is most common in children.

    Rickets

    Rickets is a rare disorder that affects children’s bones, causing them to soften and break easily.

  • Close up of rheumatism / arthritis medical examination

    Rheumatoid Arthritis

    Rheumatoid arthritis (RA) is a chronic (lasting) inflammatory disorder. It causes swelling and pain in the lining of your…

  • Young boy having his throat swabbed

    Rheumatic Fever

    Rheumatic fever is a rare disease. It usually doesn’t happen in the United States. It’s tied to the bacteria that…

  • Reye’s Syndrome

    Reye’s syndrome is a rare but serious illness common in children recovering from a virus and taking aspirin. It can…

  • A photo of female legs isolated on a white background

    Restless Leg Syndrome

    Restless legs syndrome is a condition in which your legs feel very uncomfortable when you’re sitting or lying down. It…

  • Toddler with oxygen mask

    Respiratory Syncytial Virus (RSV)

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

  • A doctor using a otoscope to look inside a young girls ear canal

    Repeated Infections in Children

    Learn why your child may get several infections while he or she is still young.

  • A senior man experiences bloating and reflux from indigestion.

    Reflux/Acid Reflux (GERD)

    Acid reflux occurs when acid from your stomach backs up into your throat. It can be caused by many factors…

  • teddy bear sitting in an empty nursery

    Recurrent Pregnancy Loss

    Only 1% of women experience multiple miscarriages. They can be caused by health conditions including chromosome defects and uterus…

  • Reactive Arthritis

    Reactive arthritis occurs when your immune system reacts to an infection somewhere else in your body. It can affect your…

  • Woman massaging fingers and hand to increase blood flow

    Raynaud's Disease

    Raynaud’s disease is a rare condition that narrows your blood vessels. It causes your fingers or toes to turn color…

  • Pyloric Stenosis

    What is pyloric stenosis? Pyloric stenosis is a medical condition. It is a narrowing of the opening between the stomach and the small intestine. That space is called the pylorus. It often occurs in babies younger than 6 months. It is more common in

  • Pulmonary Hypertension

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

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