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Lyme Disease in Children What is Lyme disease in children? Lyme disease is an infection caused by bacteria called Borrelia burgdorferi. The bacteria are spread by tick bites. Lyme disease is a year-round problem, but it peaks during the spring and summer months. It can cause

Necrotizing Enterocolitis in the Newborn What is necrotizing enterocolitis in the newborn? Necrotizing enterocolitis (NEC) is a serious, life-threatening illness in newborns. It happens when tissue in the large intestine (colon) gets inflamed. This inflammation damages and kills

Nightmares and Night Terrors What are night terrors? A night terror is a partial waking from sleep with behaviors such as screaming, kicking, panic, sleep walking, thrashing, or mumbling. They are harmless, and each episode will end in deep sleep. They tend to occur in children

Substance Exposure Click on the links below to learn more about this topic. Neonatal Abstinence Syndrome Fetal Alcohol Syndrome (FAS)© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always

Vision Problems in Children Vision problems that may affect your child Eye disorders that affect vision can be divided into refractive and non-refractive errors. Refractive errors. These eye disorders cause blurred vision. They occur because the shape of the eye does not focus

Ulcerative Colitis in Children What is ulcerative colitis in children? Ulcerative colitis is an inflammatory bowel disease (IBD). In this condition, the inner lining of your child’s large intestine (colon or bowel) and rectum gets inflamed. This inflammation often starts in the

Tennis Elbow in Children What is tennis elbow in a child? Tennis elbow (lateral epicondylitis) is a painful issue caused by overuse. The tendons that join the forearm muscles to the outside part of the elbow get inflamed or damaged. This is usually caused by repeated use of those

Disorders of Sex Development When a child's gender is not clear at birth, the child has atypical genitalia (ambiguous genitalia). This means that the genitals don't seem to be clearly male or female. Atypical genitalia can be a difficult experience for families. How do the

Undescended Testes in Children What are undescended testes in children? Undescended testes means that 1 or both of the male testes have not passed down (descended) into the scrotal sac. This is a condition seen in some newborn baby boys. Most cases affect only 1 teste. About 1 in

Dialysis in Children What is dialysis? Dialysis is a procedure that is done routinely on people who have acute or chronic kidney (renal) failure. It filters waste and extra fluid from the blood. That is something that would normally be done by the kidneys. Dialysis may also be