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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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  • senior woman rubs her temples in pain

    Giant Cell Arteritis and Polymyalgia Rheumatica

    Giant cell arteritis (GCA) and polymyalgia rheumatica (PMR) is inflammation of the arteries in the arms, upper body, neck, hips,…

  • Young woman drinking from stream

    Giardiasis

    Giardiasis is an infection in the small intestine that comes from a parasite found in feces. Mild symptoms will go…

  • Woman undergoing eye exam

    Glaucoma

    Glaucoma is an eye disease. It’s caused by fluid and pressure in the eye. At first, there aren’t symptoms, but…

  • 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.

  • Group B Strep Infection

    Group B strep is a common kind of bacteria that can sicken newborns who are exposed to it during…

  • 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…

  • businessman buttoning his shirt

    Gynecomastia

    Gynecomastia is a condition in which men have enlarge breasts often caused by a change in hormones.

  • Young woman wearing a mask to protect from getting H1N1 influenza

    H1N1 Influenza

    H1N1 influenza is a viral infection. It’s not the same as seasonal flu (influenza). The first outbreak occurred in 2009…

  • 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…

  • 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…

  • 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…

  • Hand, foot, and mouth disease is a common, mild, contagious childhood illness. It causes mouth sores and a rash on the hands and feet.

    Hand, foot, and mouth disease (HFMD)

    Hand, foot, and mouth disease is a common, mild, contagious childhood illness. It causes sores inside and outside the mouth…

  • 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.

  • A woman with a head injury being checked by a doctor

    Head Injuries

    Head injuries can cause harm to your brain, skull, or scalp. There are many types including concussion, brain contusion, skull…

  • 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,…

  • woman with a headache holds a hand to her head

    Headaches

    There are several different types of headaches. Migraines and tension headaches are the most common.

  • young Asian boy with hearing device in ear

    Hearing Problems in Children

    Hearing loss in children can be caused by a number of factors. Recognizing the symptoms early increases the chances of…

  • Hearing: Noise-Induced Hearing Loss

    Noise-induced hearing loss normally occurs from regular exposure to loud noises.

  • An older man bent over in pain holding his chest

    Heart Attack

    A heart attack is a cardiac event caused by one or several factors and can be mild or fatal.

  • side-by-side diagrams of a healthy heart and one with heart failure

    Heart Failure

    Heart failure means your heart isn’t pumping blood as well as it should. It can be caused by different heart…

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