Diseases and Conditions

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

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  • Enlarged Adenoids

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

  • 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…

  • Canker Sores

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

  • Depression

    Depression is a mood disorder that affects people of all ages and is different for everyone. A person who has…

  • Coronavirus Disease 2019 (COVID-19)

    COVID-19 is highly contagious and does not yet have an approved vaccine. Symptoms may include a cough, a fever, and…

  • Opioid Addiction

    An opioid addiction is a powerful urge to use opioids. These are medicines that are used to relieve pain, such…

  • Scarlet Fever

    Scarlet fever is a bacterial infection. It used to be more common and severe, but now is treatable. It can…

  • Ringworm

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

  • West Nile Virus

    West Nile virus is a disease usually spread by mosquitos that can cause flu-like symptoms. Most people infected with the…

  • Poisoning

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

  • Poison Ivy

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

  • Plantar Fasciitis

    Plantar fasciitis is an inflammatory condition that causes pain and swelling in your heel.

  • Pigmented Villonodular Synovitis

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

  • Menopause

    Menopause is when a person’s menstrual periods permanently end. It happens because, as a person ages, their ovaries make fewer…

  • Mallet Finger

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

  • Leprosy

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

  • Intoeing

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