Diseases and Conditions

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

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  • Flatulence/Gas

    Flatulence is another name for gas. It happens when air stays in your abdomen after you eat. It can be…

  • A child scratches her head with a look of discomfort on her face. Head lice are small wingless insects that can get on your hair and scalp. Lice bites may cause scratching, skin irritation or infection.

    Head Lice

    Head lice are small wingless insects that can get on your hair and scalp. Lice bites may cause constant scratching,…

  • A man looks in the mirror at his receding hairline. It is normal to shed some hair each day. However, some people may experience excessive (more than normal) hair loss for various reasons.

    Hair Loss

    It is normal to shed some hair each day as part of this cycle. However, some people may experience excessive…

  • 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…

  • an infant lies on her back without a diaper

    Diaper Rash

    Diaper rash is redness and rash on a baby’s bottom or genital area. It is a very common rash. Normally,…

  • woman with a keloid or raised scar on her shoulder

    Keloids (Raised Scars)

    Keloids are a type of raised scar. They occur where the skin has healed after an injury and can grow…

  • A 3-D illustration of hepatitis B virus in blood vessel with red blood cells

    Hepatitis B

    Hepatitis B is a serious liver infection caused by a virus. It is usually spread from person to person through…

  • Eosinophilic Esophagitis

    Eosinophilic esophagitis is an inflammatory, allergic disease that occurs when certain white blood cells build up in your esophageal…

  • Close up shot of woman wearing deep vein thrombosis stockings on her feet

    Deep Vein Thrombosis

    Deep vein thrombosis is a blood clot that occurs in your leg veins. It can break off and travel to…

  • Cytomegalovirus

    Cytomegalovirus (CMV) is a common virus that most people are exposed to as infants. It rarely causes symptoms, but sometimes…

  • A woman sitting in front of her computer, talking on her cell phone, and yawning

    Chronic Fatigue Syndrome

    Chronic fatigue syndrome is a disease that causes extreme fatigue that lasts for more than 6 months and interrupts daily…

  • A man working at a computer, grabbing his right wrist in pain. Carpal tunnel syndrome occurs when the tissues in your wrist get swollen or inflamed and press on the median nerve, making your hand hurt.

    Carpal Tunnel Syndrome

    Carpal tunnel syndrome is a painful disorder that occurs when the tissues in your wrist get swollen or inflamed and…

  • Thalassemia is a group of inherited blood disorders that prevent your body from producing the amount of hemoglobin it needs.

    Thalassemia

    Thalassemia is a group of inherited blood disorders that prevent your body from producing the amount of hemoglobin it…

  • An illustration of a healthy kidney and a kidney with cysts

    Kidney Cysts

    Kidney cysts are sacs filled with fluid that form in the kidneys. These small, oval or round sacs are almost…

  • Illustration of a blood clot in an artery leading to the heart

    Hypercoagulation

    Hypercoagulation is when your blood forms a clot when it shouldn’t. This clot can then travel through your body. This…

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

    Croup

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

  • Woman holding clean menstrual pad

    Amenorrhea

    Amenorrhea is a medical term for when a woman does not have menstrual periods.

  • Man sitting on sofa, holding shoulder in pain

    Adhesive Capsulitis (Frozen Shoulder)

    Adhesive capsulitis, or frozen shoulder, is the condition that occurs when inflammation in your shoulder eventually leads to difficulty moving…

  • A mother holds baby being checked for bronchiolitis by a doctor with a stethoscope.

    Bronchiolitis

    Bronchiolitis is a common lung infection in infants and young children. It is usually caused by a virus. RSV is…

  • Woman holding throat in pain. When you have Hashimoto’s disease, your immune system attacks the thyroid gland. When this happens, your thyroid can’t make hormones normally.

    Hashimoto's Disease

    Hashimoto’s disease is an autoimmune disease that affects your thyroid gland.