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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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  • An illustration of lung shapes drawn in different colors. Shortness of breath happens when you cannot get enough air into your lungs. Causes include asthma, lung diseases, panic attacks, or allergies.

    Shortness of Breath

    Shortness of breath happens when you cannot get enough air into your lungs. It can be caused by asthma, lung…

  • A crying elderly woman with cancer is comforted by a caretaker. Pancreatic cancer is an abnormal growth of cells in the pancreas. It is difficult to detect early, making treatment tough at later stages.

    Pancreatic Cancer

    What is pancreatic cancer? Pancreatic cancer is a disease in which cancer cells form on your pancreas. Your pancreas is an organ. It is located behind your stomach and in front of your spine. It produces juices that break down food and control blood

  • 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.

  • Reye’s Syndrome

    Reye’s syndrome is a rare but serious illness common in children recovering from a virus and taking aspirin. It can…

  • AIDS

    AIDS (acquired immune deficiency syndrome) is a life-threatening condition caused by human immunodeficiency virus (HIV).

  • A distracted student listens to music in a classroom. Attention-deficit hyperactivity disorder (ADHD) is a group of behaviors that makes it difficult to pay attention at school, work, or home.

    Adult ADHD

    Attention-deficit hyperactivity disorder (ADHD) is a group of behaviors that makes it difficult to pay attention at school, work, or…

  • X-ray of image with red highlighting area of cancer

    Bone Cancer

    Bone cancer is cancer that in most cases spreads to the bones from another part of the body. There are…

  • group of early teens sitting together playing on phones

    Central Precocious Puberty

    Central precocious puberty is the early onset of puberty. It can occur in children younger than 8 or 9 years…

  • Vaginal Discharge

    Vaginal discharge is the small amount of fluid produced by glands inside your vagina and cervix and released through the…

  • 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.

  • Ovarian Cyst

    An ovarian cyst is a fluid-filled sac in or on a person’s ovary. It is very common. Many times, these…

  • Osteosarcoma

    Osteosarcoma is a bone cancer that most often affects people between the ages of 10 and 20. It usually begins…

  • Nightmares and Night Terrors

    Nightmares and night terrors can be scary parts of childhood, but they are usually triggered by everyday events and often…

  • A female neurologist shows a male patient with multiple sclerosis symptoms something on a synthetic brain.

    Multiple Sclerosis

    Multiple sclerosis is a disease that affects the central nervous system. There is no cure, but there are medicines that…

  • A young woman leans over a toilet bowl as if she may vomit. Morning sickness refers to the nausea and vomiting some people have when they become pregnant. It affects the majority of pregnant people.

    Morning Sickness

    Morning sickness refers to the nausea and vomiting that some people have when they become pregnant. Morning sickness is very…

  • A woman with hives on the backs of her legs

    Mastocytosis

    Mastocytosis is the abnormal growth of cells from the immune system in your body. It can occur in people of…

  • Juvenile Rheumatoid Arthritis

    Juvenile rheumatoid arthritis can cause joint pain and swelling in children younger than 16. Its symptoms can be intermittent or…

  • Woman with hands crossed over her pelvis as if she is in pain or needs to use the restroom. Interstitial cystitis is chronic inflammation of the bladder. This inflammation can scar the bladder or make it stiff.

    Interstitial Cystitis

    Interstitial cystitis is chronic inflammation of the bladder.

  • A woman lying in bed stares at clock in the middle of the night. Insomnia is a sleep disorder where people have trouble falling asleep, staying asleep, or both. It’s more common in older adults and women.

    Insomnia

    Insomnia is a sleep disorder that happens when you have trouble falling asleep, staying asleep, or both. It’s more common…

  • 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…

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