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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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  • woman grimacing while putting her fingers in her ears

    Tinnitus

    Tinnitus causes you to hear a noise in one ear or both ears. People call it ringing in the ear…

  • . Closeup of the broken cigarette on female hand.

    Tobacco Addiction

    Smoking or chewing tobacco is very dangerous for your health, but there are many resources available to help you…

  • Doctor examining a child, checking her throat and tonsils

    Tonsillitis

    Tonsillitis is an inflammatory disease that occurs when your tonsils become infected by a virus or bacteria.

  • Toxic Shock Syndrome

    Toxic shock syndrome is a serious, sometimes life-threatening staph infection caused by bacteria that multiplies quickly and leads to organ…

  • Toxoplasma gondii on colorful background. Protozoan, which is transmitted from cats and other animals and causes toxoplasmosis, is especially dangerous for pregnant women. 3D illustration.

    Toxoplasmosis

    Toxoplasmosis is an infection caused by a parasite called Toxoplasma gondii. It can be spread through cat feces or contaminated…

  • Illustration of blood vessels

    Transient Ischemic Attack (TIA)

    A transient ischemic attack (TIA) is a stroke. It is considered a “warning” stroke. It significantly increases your risk of…

  • Transient Synovitis of the Hip

    Learn about the symptoms, causes, diagnosis and treatment of transient synovitis of the hip, a condition that causes sudden hip…

  • Female doctor wrapping the head of a young man with gauze

    Traumatic Brain Injury

    A traumatic brain injury is any sudden injury to your brain. It could be from a bump, blow, or jolt…

  • Trigeminal Neuralgia

    Trigeminal neuralgia is a painful condition that causes an extreme burning, electric or shock-like pain in the face.

  • Tuberculosis

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

  • Tuberous Sclerosis

    Tuberous sclerosis is a rare disease that causes tumors, or growths, in the brain and other organs. They are usually…

  • Ulcers

    Ulcers are sores on the lining of your stomach or small intestine that cause discomfort when you eat or after…

  • 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…

  • Photo of a new diaper from the top angle looking in

    Urinary Incontinence

    Urinary incontinence is the loss of bladder control. This means that you can’t always control when you urinate.

  • Urinary Tract Infection

    Learn about the symptoms, causes, diagnosis, treatment, prevention and complications of urinary tract infections (sometimes called UTIs or bladder…

  • A medical drawing of uterine fibroids in and around the uterus.

    Uterine Fibroids

    Fibroids are benign growths (not cancer) in the muscular wall of the uterus. These growths can be very tiny or…

  • Vaginal Discharge

    Vaginal discharge is completely normal as your body’s way of keeping your vagina healthy and clean. But changes in discharge…

  • Vaginitis

    Vaginitis is a medical term to describe inflammation of the vagina.

  • A varicose vein is visible on the side of a woman’s knee

    Varicose Veins

    Varicose veins are veins that swell above the surface of the skin. They can be treated with compression stockings, surgery…

  • Vision Loss

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

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