What are cataracts? Cataracts are a painless, cloudy area in the lens of the eye. They block the passage of light to the retina. Nerve cells in the retina detect light entering the eye and send nerve signals to the brain about what the eye sees. Because cataracts block this light, they can cause vision problems. What...

Understand the basics about LGBTQ health.

Discusses attention deficit hyperactivity disorder (ADHD), which in the past was called attention deficit disorder (ADD). Covers symptoms including inattention, impulsivity, and hyperactivity. Discusses treatment with medicines like Ritalin, and behavior therapy.

Covers eating a variety of foods so that your child gets the nutrients needed for normal growth. Looks at how much food is good for your child and how you can help your child eat well and be healthy. Explains how to help a child who is overweight.

What is a molar pregnancy? A molar pregnancy means that tissue that normally becomes a fetus instead becomes a mass of abnormal tissue in your uterus. It is also called a hydatidiform mole. This abnormal tissue causes symptoms of pregnancy. This tissue can cause serious problems in some cases. So a molar pregnancy...

Discusses chronic pain caused by problems other than cancer. Covers symptoms and how chronic pain is diagnosed. Covers conditions that can be treated, like neck pain, low back pain, and arthritis. Info on treatment with medicine and lifestyle changes.

Guides you through decision to take bisphosphonate medicines for osteoporosis. Lists medicine names like alendronate (Fosamax) and risedronate (Actonel). Lists risks and benefits. Includes interactive tool to help you make your decision.

Covers causes and symptoms of asthma in teens and adults. Includes info on avoiding triggers and treating attacks. Looks at treatment with controller medicine. Covers delivery systems that include metered-dose and dry powder inhalers and nebulizers.

Thyroid antibody tests measure the levels of antibodies that can destroy thyroid tissue or make the cells produce thyroid hormones. They are blood tests. Antibodies that destroy thyroid tissue can lead to hypothyroidism (underactive thyroid). Antibodies that make the cells produce thyroid hormone can lead to...

Positron Emission Tomography (PET)—Overview Positron emission tomography (PET) is a test that uses a special type of camera and a tracer (radioactive substance) to look at organs in the body. The tracer usually is a special form of a substance (such as glucose) that collects in cells that are using a lot of energy, such...

What are outpatient services? Outpatient services are medical procedures or tests that can be done in a medical center without an overnight stay. Many procedures and tests can be done in a few hours. Outpatient services include: Wellness and prevention, such as counseling and weight-loss programs. Diagnosis, such as lab...

What is schizophrenia? Schizophrenia is an illness that can affect your ability to think clearly, manage your emotions, and interact with others. It affects each person differently. Most people who have schizophrenia: Hear and sometimes see things that aren't there ( hallucinations). Often believe certain things that...

Discusses causes and symptoms of asthma in children. Looks at treatment with medicine such as inhaled corticosteroid and albuterol. Discusses avoiding triggers and treating attacks. Covers using nebulizers, metered-dose with spacer and dry powder inhalers.