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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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  • Warts are small skin growths caused by the human papillomavirus. Your doctor can recommend the best wart removal method for you.

    Warts and Wart Removal

    Warts are small skin growths caused by the human papillomavirus. You can develop warts on your face, hands, feet, and…

  • Tuberous Sclerosis

    Tuberous sclerosis is a rare disease that causes tumors, or growths, in the brain and other organs. They are usually…

  • Strabismus

    Strabismus is an eye disorder. It affects the muscle control in your eyes. The eyes don’t line up properly. Instead,…

  • Male struggling with premature ejaculation sits on edge of bed with girlfriend in the background.

    Premature Ejaculation

    Premature ejaculation happens when an individual has an orgasm sooner than wanted. It can happen before or shortly after…

  • Shaken Baby Syndrome (Abusive Head Trauma)

    Abusive head trauma (shaken baby syndrome) is a form of child abuse that can be deadly or leave a baby…

  • Doctor talking to patient

    Anal Fistulas

    An anal fistula is an abnormal connection that forms between the anus and the skin outside of it. It usually…

  • Person pushes hair back to reveal a bald spot. Alopecia areata is a form of hair loss. It’s a non-life-threatening disease of your immune system that affects the hair on your scalp.

    Alopecia Areata (AA)

    Alopecia areata is an autoimmune disease that causes you to lose small, round patches of hair on your head.

  • Illustration of enlarged adenoid. Adenoids are tiny pieces of tissue in the back of your throat. They hang above your tonsils. They help fight infections in your body.

    Enlarged Adenoids

    Adenoids are tiny pieces of tissue in the back of your throat. They hang above your tonsils. They help fight…

  • X-ray of woman’s pelvis, showing bladder stones

    Bladder Stones

    Bladder stones are small crystals that form in your urine. They are hard and become trapped in your bladder. They…

  • Asthma in Kids

    Asthma is a disease that often starts in childhood and makes it difficult for your child to breathe.

  • HIV

    The human immunodeficiency virus (HIV) attacks the body’s immune system. A healthy immune system is what keeps you from getting…

  • Hepatitis A

    Hepatitis A (Hep A) is liver inflammation caused by the hepatitis A virus. It isn’t typically as serious as hepatitis…

  • Close-up of child with canker sore on inside of lip

    Canker Sores

    Canker sores are small, thin sores in your mouth. You might get them on the inside of your lips or…

  • Poisoning

    Poison is any substance that is harmful to your body. You could breathe it in, swallow it, or absorb it…

  • Poison ivy is a type of toxic plant that can cause an itchy rash. Poison ivy often grows low to the ground, resembling a weed or shrub.

    Poison Ivy

    Poison ivy is a type of toxic plant. It is common in most parts of the United States. Poison ivy…

  • Pigmented Villonodular Synovitis

    Pigmented villonodular synovitis is a joint problem that usually affects the hip or knee. It also can occur in the…

  • close-up of a young man in jeans holding a baseball in his hand

    Mallet Finger

    Mallet finger is an injury to your fingertip that prevents you from straightening it. It is common in sports, especially…

  • A person sits in a chair and rubs their foot with their hand. Leprosy is a chronic infection caused by bacteria. It can affect the skin, nerves, eyes, and nose. It’s also called Hansen’s disease.

    Leprosy

    Leprosy is a chronic infection caused by bacteria. It can affect the skin, nerves of the hands and feet, eyes,…

  • Closeup of a mother helping her toddler walk in the grass

    Intoeing

    Most people’s feet point straight ahead or outward. Some people, however, have feet that point inward. This is called…

  • closeup of person cutting toenails

    Ingrown Toenails

    An ingrown toenail occurs when the side or corner of the nail curls down and digs into the skin of…

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