3891-3900 of 4281 Results Found
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Thyroid Conditions Click on the links below to learn more about these topics. Hyperthyroidism Hypothyroidism Postpartum Thyroiditis© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always
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Medical Genetics: Types of Genetic Changes The human body has about 20,000 different genes in each cell. Genes are located on chromosomes, which are stick-shaped structures in the middle of the cell (nucleus). Each cell usually has 46 chromosomes grouped in 23 pairs. Each gene
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Herpes Simplex Virus (Cold Sores) in Children What are cold sores in children? Cold sores are small blisters around the mouth caused by the herpes simplex virus. They are sometimes called fever blisters. What causes cold sores in a child? The most common cause of cold sores is
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HIV Home Care for a Child What is HIV? HIV (human immunodeficiency virus) is the virus that causes AIDS, which is advanced HIV disease. HIV infection may lead to the body's immune system not fighting off infections as well as it should. A child with HIV needs more care to remain
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Meningitis in Children What is meningitis in children? Meningitis is a swelling (inflammation) of the thin membranes that cover the brain and the spinal cord. These membranes are called the meninges. What causes meningitis in a child? Meningitis is most often caused by a
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Common Cold in Children What is the common cold in children? The common cold (upper respiratory infection) is one of the most common illnesses in children. Each year it leads to more doctor visits and missed days from school and work than any other illness. Millions of people in
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Anatomy and Function of the Heart Valves What are heart valves? The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood
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Urinary Tract Infection (UTI) in Children What is a urinary tract infection (UTI) in children? A urinary tract infection is inflammation of part of the system that takes urine out of the body. It’s caused by bacteria. The urinary tract includes the 2 kidneys. They remove liquid
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Vesicoureteral Reflux (VUR) in Children What is vesicoureteral reflux in children? Vesicoureteral reflux (VUR) is a condition in which urine in the bladder flows in the wrong direction. It goes up into the tubes (ureters) that lead to the kidneys. It often flows all the way back
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Fire Safety and Burns Overview A burn injury usually results from an energy transfer from a heat source to the body. There are many types of burns, including: Thermal burns. These burns are caused by heat sources that raise the temperature of the skin and tissues and cause tissue