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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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  • A woman pressing on her chest due to heartburn pain

    Heartburn

    Heartburn is a burning feeling in the lower chest, along with a sour taste in the throat and mouth. It…

  • Genital Warts

    Genital warts are small, flat, flesh-colored bumps or tiny, cauliflower-like bumps. They’re caused by the human papillomavirus (HPV).

  • Girl walking over balancing pods during physical therapy for flat feet

    Flat Feet

    Flat feet is a common condition in which one or both feet don’t have normal arches. This condition can happen…

  • A man has fainted outdoors

    Fainting

    Fainting happens when your brain does not get enough oxygen. You lose consciousness, or “pass out,” for a brief time…

  • E. coli Infection

    E. coli are germs that are found on food and in the environment. When ingested, E. coli cause severe cramps…

  • Doctor examining patient’s ear with otoscope

    Ear Infection

    An ear infection is one of the most common conditions among children. It is caused by a viral or bacterial…

  • man plucking the feathers of a bird's corpse

    Avian Flu

    Avian flu is a virus that is spread from bird to bird. In rare cases, certain strains of the virus…

  • Bedbugs

    Bedbugs are oval-shaped, wingless parasites. They have 6 legs and are about 1/5 of an inch long. They are white…

  • A doctor holds a bag of blood while talking to patient getting a blood transfusion because of anemia symptoms.

    Anemia

    Anemia is the most common blood disorder in the U.S. It affects your red blood cells and hemoglobin. Most people…

  • Yeast Infections

    Vaginal yeast infections are caused by a fungus called Candida. If the vagina isn’t acidic enough, too many yeast can…

  • A man coughs into his hand. Whooping cough is a respiratory infection. It is also known as pertussis. Whooping cough is highly contagious and is most harmful to babies.

    Whooping Cough

    Whooping cough is a respiratory infection. It is also known as pertussis. Whooping cough is highly contagious and is most…

  • Table for eyesight test and glasses over it. Vision loss is losing your ability to see well without vision correction tools, such as eyeglasses or contact lenses.

    Vision Loss

    Vision loss is losing your ability to see well without vision correction tools, such as eyeglasses or contact lenses. It…

  • View of a man’s spinal column through the back of his shirt

    Spinal Cord Injury

    Common causes of spinal cord injury include falling, sports-related events, car accidents, and diseases such as polio or spina…

  • Hand Massage to help pain in the finger joints.

    Scleroderma

    Scleroderma is a rare autoimmune disorder. There are 2 types of scleroderma. One type affects the skin. The other type…

  • A mother with postpartum preeclampsia holding a newborn baby in her arms at the hospital

    Postpartum Preeclampsia

    Postpartum preeclampsia is high blood pressure in a woman who has recently had a baby. It is a rare medical…

  • Huntington's Disease

    Huntington’s disease is a rare, progressive brain disorder. It gradually kills nerve cells in the brain, taking away physical and…

  • Cotton swab with fluid sample for lab test to diagnose meningitis

    Meningitis

    Meningitis is swelling of the tissue around your brain and spinal cord. There are two common types of meningitis: viral…

  • newborn baby wrapped up in a blanket sleeping

    Undescended Testicles

    Testicles are part of the male body. They usually move from inside the body to the scrotum at birth. If…

  • Tuberculosis

    Tuberculosis is an infection caused by bacteria. Tuberculosis usually affects the lungs. But it can also affect your joints, kidneys,…

  • A sick woman with acute bronchitis coughs at her desk. Acute bronchitis is a contagious viral infection that causes inflammation of the bronchial tubes (the airways that carry air into your lungs).

    Acute Bronchitis

    Acute bronchitis is a contagious viral infection that causes inflammation of the bronchial tubes (the airways that carry air into…

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