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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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  • Substance Abuse

    Substance abuse can happen when products aren’t used in the right way. Prescription medicines, illegal drugs, tobacco, and alcohol can…

  • sore throat, shown red, isolated on white background

    Hyperparathyroidism

    Hyperparathyroidism is a condition that causes you to have too much calcium in your bloodstream and not enough in your…

  • Hip Fractures

    A hip fracture is a break in your thigh bone (femur) where it connects to your pelvic bone. Hip fractures…

  • A man scraping his tongue with a tongue scraper

    Halitosis

    Halitosis is another name for bad breath. It can be caused by foods you eat or not taking proper care…

  • Man with painful and swollen big toe joint due to gout inflammation

    Gout

    Gout is a common type of arthritis marked by swelling and pain in your joints.

  • Illustration of female reproductive system with a close-up on an embryo developing in the fallopian tube. An ectopic pregnancy happens when a fertilized egg grows outside the uterus. It can be dangerous to the mother if not treated early enough.

    Ectopic Pregnancy

    An ectopic pregnancy happens when a fertilized egg grows outside the uterus. It can be dangerous to the mother if…

  • Ebola virus disease is caused by infection by the Ebola virus. There are five known strains, four of which affect people.

    Ebola Virus Disease

    Ebola virus disease is caused by infection by the Ebola virus. There are five known strains, four of which affect…

  • A young boy wearing a blue shirt holds leg in pain. Growing pains can make your child’s legs hurt and are common between the ages of 3 and 12. They are typically not serious.

    Growing Pains

    Growing pains can make your child’s legs hurt and are common between the ages of 3 and 12. They are…

  • Woman runner holding shin in pain

    Shin Splints

    Shin splints describe a type of pain in your shinbone (tibia). They are often caused by overuse and heal within…

  • Schizophrenia

    Schizophrenia is a mental illness that interferes with the way you think, feel, and behave.

  • 3D illustration of DNA molecule

    Organic Acid Metabolism Disorders

    Organic acid metabolism disorders are a group of rare birth defects. They affect your ability to break down food into…

  • 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…

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

    Clubfoot

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

  • Close-up of a mosquito on human skin. West Nile virus is an infectious disease that can cause flu-like symptoms. It’s usually spread by infected mosquitos.

    West Nile Virus

    West Nile virus is an infectious disease that can cause flu-like symptoms. It’s usually spread by infected mosquitos.

  • woman holding stomach in pain

    Vulvodynia

    Vulvodynia is pain and discomfort in a woman’s external genital area known as the vulva.

  • A young businessman having a panic attack in an office. Panic disorder is a condition in which a person has sudden episodes of intense fear or anxiety. These episodes are known as panic attacks.

    Panic Disorder and Panic Attacks

    Panic disorder is a condition in which a person has episodes of intense fear or anxiety that occur suddenly, often…

  • Osteochondritis Dissecans

    Osteochondritis dissecans is a joint problem. It occurs when an area of bone under a piece of cartilage in the…

  • Doctor examines knee of teenage boy seated on examination bed. Osgood-Schlatter disease causes swelling and knee pain. It can be caused by pulled or overused muscles around one or both knees.

    Osgood-Schlatter Disease

    Osgood-Schlatter disease is one of the most common causes of knee pain in young children and athletes. It can affect…

  • A female holds her hands behind her back. Hemorrhoids are swollen or inflamed veins in your rectum or around your anus. They are very common, especially in people who are pregnant.

    Hemorrhoids

    Hemorrhoids are swollen or inflamed veins in your rectum or around your anus. They are very common, especially in people…

  • A little girl lies in bed with a thermometer in her mouth. Fifth disease is a mild viral infection that causes a bright red rash on the face. Other symptoms include fever, sore throat and headache.

    Fifth Disease

    Fifth disease is a mild viral infection that causes a bright red rash on the face. It also has cold-like…

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