3911-3920 of 4281 Results Found
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Refractive Errors in Children What is normal vision? To understand how certain problems can affect your child's vision, it’s important to know how normal vision happens. For children with normal vision, the following things occur in this order: Light enters the eye through the
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Cataracts in Children What are cataracts in children? A cataract is a clouding of the eye's lens. The lens is normally clear (transparent). Cataracts keep light rays from passing through the lens and focusing on the retina. The retina is the thin layer of nerve tissue that lines
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Birth Defects in Children What is a birth defect in a child? A birth defect (congenital anomaly) is a health problem or abnormal physical change that is present when a baby is born. Birth defects can be very mild, where the baby looks and acts like any other baby. Or birth
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Trinucleotide Repeats: Fragile X Syndrome What are trinucleotide repeats? DNA is the chemical that makes up your genes. It contains a "code" of 3-letter words known as codons or trinucleotides. Many genes normally contain trinucleotide sequences that repeat. These are called
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Uniparental Disomy: Prader-Willi Syndrome and Angelman Syndrome What is uniparental disomy? Chromosome pairs affect how our body works. Normally, a baby gets one copy of each chromosome pair from each birth parent. In rare cases, two copies come from the same parent. This is
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Fever in Children What is a fever? Most doctors define a fever as a temperature of 100.4°F (38°C) or higher when taken rectally or 100°F (37.8°C) or higher when taken by mouth. You might get slightly different numbers depending on how you take your child's temperature. The body
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Bicycling, Inline Skating, Skateboarding, and Scooter Safety—Prevention Buying the right bike It's important that the bike your child rides is the right size. In addition, consider the following advice: The bike shouldn't be too big or complicated. Your child should be able to
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Urinary Incontinence (Enuresis) in Children What is enuresis in children? Urinary incontinence (enuresis) is the loss of bladder control. It is also called enuresis (say "en-yer-EE-sus"). In children younger than age 3, it's normal to not have full bladder control. As children
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Fever in a Newborn Baby The system that controls body temperature is not well developed in a newborn baby. Call your baby's doctor right away if your baby is younger than 3 months old and has a rectal or forehead (temporal) temperature of 100.4°F (38°C) or higher. This is an
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Breathing Problems What might breathing problems mean in a newborn? Babies breathe much faster than older children and adults. A newborn's normal breathing rate is about 40 to 60 times per minute. This may slow to 30 to 40 times per minute when the baby is sleeping. A baby’s