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Allergic Rhinitis in Children What is allergic rhinitis in children? Rhinitis is a reaction that happens in the eyes, nose, and throat. It occurs when allergens in the air set off the release of histamine and other chemicals in the body. Normally allergens are harmless. But when

Treatment for a Child's Allergy to Dust or Pollen Your child's doctor will consider your child's age, overall health, how severe the allergic reaction was, and other factors when advising treatment. The three ways to treat allergies that work best are: Avoiding the allergen

Food Allergy What is a food allergy? A food allergy is when your immune system has a bad reaction to a certain food. This is different from a food intolerance, which does not involve the immune system. This is true even though some of the same signs may be present. What causes a

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

Salmonella Infections What are salmonella infections? Salmonella infection is caused by the bacteria salmonella. Salmonella is a group of bacteria that can cause diarrhea in humans. There are many different kinds of salmonella bacteria. What causes salmonella infections

Tongue-Tie (Ankyloglossia) in Children What is tongue-tie in children? Tongue-tie (ankyloglossia) is a problem with the tongue that is present from birth. It causes speech and eating problems in some children. The lingual frenulum of the tongue is a small fold of tissue that

Normal Breast Development and Changes What is normal breast development? Breast development is a vital part of a woman’s reproduction. Breast development happens in certain stages during a woman's life: first before birth, again at puberty, and later during the childbearing years

Labor What is labor? Labor is when the uterus contracts again and again to help the cervix open (dilate) and to thin (efface). The contractions get stronger with time. This causes the fetus to move through the birth canal. Labor usually starts 2 weeks before or after the

Kidney Failure What is kidney failure? Kidney failure happens when damage results in loss of normal kidney function. There are 2 types of kidney failure—acute and chronic. Acute kidney failure starts abruptly. It can sometimes be reversed. Chronic kidney failure progresses slowly

Medical Genetics: Getting Genetic Services for Your Child What are genetic services? Genetic services are programs that help support families and children with genetic disorders. Genetic services can: Give you information about your family’s genetic risk factors. Diagnose a