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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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Underage Drinking - National Library of Medicine

... poor decisions about engaging in risky behavior, such as drinking and driving or unprotected sex Increases the ... sexual assault Can lead to other problems, such as trouble in school May interfere with brain development ...

Volcanoes - National Library of Medicine

A volcano is a vent in the Earth's crust. Hot rock, steam, poisonous gases, and ash reach the Earth's surface when a volcano erupts. An eruption can also cause earthquakes, ...

Adhesions - National Library of Medicine

... have slippery surfaces so they can shift easily as the body moves. Adhesions cause tissues and organs ... completely block the intestines, they cause symptoms such as: Severe abdominal pain or cramping Vomiting Bloating An ...

Adrenal Gland Cancer - National Library of Medicine

... respond to stress and has many other functions. A number of disorders can affect the adrenal glands, ... in the outer part of the gland Neuroblastoma, a type of childhood cancer Pheochromocytoma - a rare tumor ...

Anal Disorders - National Library of Medicine

... Swelling How are anal disorders diagnosed? To make a diagnosis, your health care provider will ask about ... your anus for anything that looks abnormal. Perform a digital rectal exam (DRE). For this exam, your ...

Antioxidants - National Library of Medicine

... including fruits and vegetables. They are also available as dietary supplements. Examples of antioxidants include: Beta-carotene Lutein Lycopene Selenium Vitamin A Vitamin C Vitamin E Vegetables and fruits are ...

Asbestos - National Library of Medicine

Asbestos is the name of a group of minerals with long, thin fibers. It was once used widely as insulation. It also occurs in the environment. Asbestos ... you breathe in high levels of asbestos over a long period of time, the fibers can build ...

Bladder Cancer - National Library of Medicine

The bladder is a hollow organ in your lower abdomen that stores urine. Bladder cancer occurs in the lining of the bladder. It ... United States. Symptoms include: Blood in your urine A frequent urge to urinate Pain when you urinate ...

Bladder Diseases - National Library of Medicine

The bladder is a hollow organ in your lower abdomen that stores urine. Many conditions can affect your bladder. Some common ones are: ... Urinary incontinence - loss of bladder control Overactive bladder - a condition in which the bladder squeezes urine out ...

Blood Pressure Medicines - National Library of Medicine

... symptoms. But it can cause serious problems such as stroke, heart failure, heart attack, and kidney disease. ... blockers (ARBs) keep your blood vessels from narrowing as much and allows blood to move through them ...

Botulism - National Library of Medicine

Botulism is a rare but serious illness. The cause is a toxin (poison) made by a bacterium called Clostridium botulinum. It occurs naturally in ... contaminated with the toxin. Wound botulism happens when a wound infected with the bacteria makes the toxin. ...

Bowel Movement - National Library of Medicine

A bowel movement is the last stop in the movement of food through your digestive tract. Your ... fluids from what you eat and drink. Sometimes a bowel movement isn't normal. Diarrhea happens when ...

Breastfeeding - National Library of Medicine

... of nutrients to help your infant grow into a strong and healthy toddler. Some of the nutrients ... If you are having problems with breastfeeding, contact a lactation consultant. NIH: National Institute of Child Health ...

Breathing Problems - National Library of Medicine

... the oxygen your body needs. You may feel as if you're not getting enough air. Sometimes you can have mild breathing problems because of a stuffy nose or intense exercise. But shortness of ...

Canker Sores - National Library of Medicine

... the back of your throat. They usually have a red edge and a gray center. They can be quite painful. They are not the same as cold sores, which are caused by herpes simplex. ...



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