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MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). It was built as an online health information resource for patients and their families and friends.

MedlinePlus presents high-quality, easy to understand, relevant health and wellness information that is trusted.

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Health Insurance - National Library of Medicine

... you from high medical care costs. It is a contract between you and your insurance company. You buy a plan or policy, and the company agrees to ... care. Many people in the United States get a health insurance policy through their employers. In most ...

Hives - National Library of Medicine

... bumps on your skin. An allergic reaction to a drug or food usually causes them. Allergic reactions ... away on their own, but if you have a serious case, you might need medicine or a ...

Impaired Driving - National Library of Medicine

... half of all car crashes. It means operating a motor vehicle while you are affected by: Alcohol Legal or illegal drugs Sleepiness Distractions, such as using a cell phone or texting Having a ...

Indigestion - National Library of Medicine

... everyone has had indigestion at one time. It's a feeling of discomfort or a burning feeling in your upper abdomen. You may ... or make it worse. Sometimes the cause is a problem with the digestive tract, like an ulcer ...

Limb Loss - National Library of Medicine

... may result in amputation (the surgical removal of a limb). Injuries, including from traffic accidents and military ... help you adapt. Recovery from the loss of a limb can be hard. Sadness, anger, and frustration ...

Malaria - National Library of Medicine

Malaria is a serious disease caused by a parasite. You get it when an infected mosquito bites you. Malaria is a major cause of death worldwide, but it is almost wiped ...

Meningitis - National Library of Medicine

... common is viral meningitis. You get it when a virus enters the body through the nose or ... deadly. It usually starts with bacteria that cause a cold-like infection. It can cause stroke, hearing ...

Multiple Myeloma - National Library of Medicine

Multiple myeloma is a cancer that begins in plasma cells, a type of white blood cell. These cells are part of your immune ... multiple myeloma using lab tests, imaging tests, and a bone marrow biopsy. Your treatment depends on how ...

Newborn Screening - National Library of Medicine

... state where you live. They include: Tests on a few drops of blood from pricking the baby's ... test for at least 30 of these conditions. A hearing test that measures the baby's response to ...

Noise - National Library of Medicine

... that are too loud or loud sounds over a long time are harmful. They can damage sensitive ... Americans are exposed to hazardous sound levels on a regular basis. Hazardous sound levels are louder than ...



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