Diseases and Conditions

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

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  • Doctor treating a senior woman who has possible bone fractures

    Multiple Myeloma

    Multiple myeloma is a kind of cancer in the bone marrow. It is caused when your body makes too many…

  • A doctor wearing blue latex gloves

    Latex Allergy

    Natural rubber latex comes from a liquid in tropical rubber trees. The protein in this rubber can cause an allergic…

  • Hernia

    A hernia is a tear in your muscle or tissue that allows part of your insides to bulge out. Sometimes…

  • Man's hands on his stomach with red spot indicating pain caused by irritable bowel syndrome (IBS)

    Irritable Bowel Syndrome (IBS)

    Irritable bowel syndrome (IBS) is a gastrointestinal (GI) disorder. It describes a group of symptoms that affect your large intestine…

  • An illustration of large and small intestines inside the body that are color coded where red represents inflammation

    Inflammatory Bowel Disease (IBD)

    Inflammatory bowel disease (IBD) is the name of a group of disorders that cause the intestines to become inflamed (red…

  • Hammer toe causes the toe to get stuck in a stiff, claw-like position over time. This can be painful and make walking difficult.

    Hammer Toe

    When a person has hammer toe, the end of their toe bends downward and the middle joint curls up. Over…

  • Doctor talking to patient in office

    Anal Fissure

    An anal fissure is a small crack or tear in the thin, moist lining of the lower rectum. It’s a…

  • A sleeping baby lays wrapped in a blanket. Phenylketonuria (PKU) is a rare genetic condition where babies are unable to break down an amino acid. This can lead to brain damage.

    Phenylketonuria (PKU)

    Phenylketonuria (PKU) is a rare genetic condition where babies are unable to break down an amino acid. This can lead…

  • Pinworm Infection

    Pinworm infection is an intestinal infection caused by small, white worms. Anyone can get it, but it’s most common in…

  • Patellofemoral Pain Syndrome

    Patellofemoral pain is a knee condition. It’s most common in people who participate in high-impact activities that include jumping and…

  • Heat Rash

    Heat rash is a skin irritation that stings and makes your skin red. It is also called miliaria or prickly…

  • Young woman massaging neck, which is in pain

    Cervical Dystonia

    Cervical dystonia is a neurological disorder that causes your neck muscles to contract involuntarily. This can make your head lean…

  • Female doctor wrapping the head of a young man with gauze

    Traumatic Brain Injury

    A traumatic brain injury is any sudden injury to your brain. It could be from a bump, blow, or jolt…

  • Nosebleeds

    A nosebleed is blood loss from the tissue that lines your nose. It most often occurs in only one nostril,…

  • close up of a woman holding her abdomen in discomfort

    Pelvic Inflammatory Disease

    Pelvic inflammatory disease is an infection of female reproductive organs. It can make it hard to get pregnant and cause…

  • Mountain climber using mini portable oxygen cylinder to avoid and treat high-altitude illness

    High-Altitude Illness

    High-altitude illness can occur when you travel to altitudes higher than 8,000 feet. It happens when your body doesn’t get…

  • Infant Jaundice

    Infant jaundice is common. It can make your baby’s skin, eyes, and mouth turn yellow. While it may look odd,…

  • Woman holding eye in pain

    Blepharospasm

    Blepharospasm is a rare condition that causes your eyelid to blink or twitch. You can’t control it. It’s caused by…

  • fluffy domestic cat stretches its paw and claws in the air

    Cat-Scratch Disease (Cat-Scratch Fever)

    Cat-scratch disease is an infection you can get after a cat scratches, bites, or licks you. It is caused by…

  • Barrett’s esophagus is a condition that affects your esophagus. It happens when acid from your stomach goes back up into your esophagus.

    Barrett’s Esophagus

    Barrett’s esophagus is a condition that affects your esophagus. It happens when acid from your stomach goes back up into…