Diseases and Conditions

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

Filter By Alphabet
All conditions
  • Close up of a child's cleft lip

    Cleft Lip and Cleft Palate

    Cleft lip and cleft palate are birth defects that happen when a baby’s lip or mouth don’t form correctly early…

  • Man Drugging Woman's Drink In Bar

    Club Drug Use

    Club drugs are common, illegal drugs used at parties, bars, nightclubs, and concerts for the purpose of getting high.

  • A photo of a baby who has on a cast on his leg


    Clubfoot is a condition present at birth that causes a baby’s foot to turn inward or downward. It can be…

  • An ill young woman with a fever holds an ice bag on her head while resting in bed. A cold and the flu are viral infections that affect the respiratory system.

    Colds and the Flu

    Learn about the symptoms of and treatments for colds and the flu.

  • Baby sleeping in a position on his father’s arm to help treat colic


    Colic is when your baby cries for longer than 3 hours a day at least 3 days per week. It…

  • Colorectal Cancer

    Colorectal cancer is a cancer of the colon or the rectum that can be detected through early, regular screenings.

  • illustration of human nervous system

    Complex Regional Pain Syndrome

    Complex regional pain syndrome is a chronic pain condition that often happens after an injury. It is believed to be…

  • man holding injured head in pain


    A concussion is a type of traumatic brain injury (TBI). It occurs when you hit your head, neck, or body…

  • Congenital Adrenal Hyperplasia

    Congenital adrenal hyperplasia (CAH) is a rare genetic disorder that affects your adrenal glands.

  • doctor listens to a baby’s heart with a stethoscope

    Congenital Heart Disease

    Congenital heart disease is a heart problem that some people are born with and can include a hole in the…

  • Woman holding stomach in pain


    Constipation is a common condition that makes it difficult to have a bowel movement. It can be caused by changes…

  • Corneal Abrasions

    A corneal abrasion is a cut or scratch on your cornea, the layer of protective tissue at the front of…

  • Man holding chest in pain

    Coronary Artery Disease (CAD)

    Coronary artery disease occurs when blood vessels that carry blood to your heart get blocked with plaque.

  • Man clutching chest in pain as a result of coronary heart disease

    Coronary Heart Disease (CHD)

    Coronary heart disease (CHD) is the most common type of heart disease caused by a buildup of plaque in your…

  • COVID-19 is a disease caused by a coronavirus called SARS-CoV-2, which was identified in 2019.

    Coronavirus (COVID-19)

    Learn how to better protect yourself from COVID-19.

  • COVID-19 is a disease caused by a coronavirus called SARS-CoV-2, which was identified in 2019.

    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…

  • A plastic model of intestines sits on a table in a doctor’s office where a patient is consulting with a doctor about her Crohn’s disease.

    Crohn’s Disease

    Crohn’s disease is an inflammatory bowel disease (IBD) that causes ulcers to form in the gastrointestinal (GI) tract anywhere from…

  • Doctor listens to the lung of a young girl with croup cough using a stethoscope


    Croup is caused by a respiratory virus and causes children, usually age 5 and younger, to have a barking…

  • Pituitary gland part human

    Cushing's Syndrome

    Cushing’s syndrome is a disease that occurs when your body makes too much of the hormone cortisol.

  • Cystic Fibrosis (CF)

    Cystic fibrosis is a genetic disorder that causes mucous and sweat glands to behave abnormally. It can lead to damage…