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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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  • two hands wearing rubber gloves and feeling a woman's lymph-nodes in her neck to test for non-hodgkin lymphoma

    Non-Hodgkin Lymphoma

    Non-Hodgkin lymphoma is a form of cancer that happens when your white blood cells become abnormal. It can be fatal,…

  • A doctor bandaging a patients hand to prevent a skin infection. Cellulitis is a skin infection caused by bacteria. It can spread to your lymph nodes and cause a blood infection if not treated.

    Cellulitis

    Cellulitis is a skin infection caused by bacteria. It can spread to your lymph nodes and cause a blood infection…

  • Cystic Fibrosis (CF)

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

  • close up image of a man's body suffering severe urticaria nettle rash.

    Exercise-induced Urticaria

    Exercise-induced urticaria is a condition that produces hives and other allergic symptoms.

  • Epilepsy

    Epilepsy is a disorder of the brain that causes seizures.

  • Senior man holds his hand to his throat in pain

    Dysphagia

    Dysphagia is a swallowing disorder that can result from multiple causes.

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

    Colic

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

  • red and white blood cells traveling through a vein in the human body

    Blood Poisoning

    Blood poisoning happens when an infection enters your bloodstream and your body reacts to the infection.

  • A men bent over clutching his side in pain due to appendicitis symptoms.

    Appendicitis

    Appendicitis is an inflammation or infection in your appendix. It can cause pain and swelling, and the appendix may burst…

  • a tick sits on a leaf

    Babesiosis

    Babesiosis is a red blood cell infection caused by a parasite carried by deer ticks. Most infections happen in the…

  • woman putting drops in her eye

    Allergic Conjunctivitis

    Allergic conjunctivitis occurs when the clear, thin membrane that covers your eyeball becomes swollen and irritated. It can cause itching…

  • Hearing: Noise-Induced Hearing Loss

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

  • allergy food

    Food Allergies

    A food allergy is an abnormal reaction by your immune system to a food. It is usually treated with antihistamines…

  • Woman injecting emergency medicine (EpiPen) into her leg

    Anaphylaxis

    Anaphylaxis is a life-threatening allergic reaction that needs immediate medical attention.

  • Two young women chatting in a coffee shop

    Overactive Bladder

    Overactive bladder is a condition that causes you to lose control of your bladder without warning.

  • Hands of woman who has neurofibromatosis, a genetic disorder that causes tumors on skin.

    Neurofibromatosis

    Neurofibromatosis (NF) is a genetic disorder that affects your nervous system and nerve cells, producing tumors on your nerves.

  • Image of a foot massage for diabetic neuropathy

    Diabetic Neuropathy

    Diabetic neuropathy is a type of nerve damage that happens in people who have diabetes. It can cause changes in…

  • A person sits in a wheelchair in his room. Muscular dystrophy is a group of rare genetic diseases that weaken and shrink your muscles. It is permanent and gets worse over time.

    Muscular Dystrophy

    Muscular dystrophy is a group of genetic diseases that weaken and shrink your muscles. It is rare, but it gets…

  • A laboratory rack with several tubes of urine ready for analysis

    Microscopic Hematuria

    Microscopic hematuria is the presence of red blood cells in your urine.

  • Young woman with metabolic syndrome drinks water after jogging outdoors.

    Metabolic Syndrome

    Metabolic syndrome is a term for a set of risk factors for heart disease including high blood pressure, cholesterol, and…

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