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Health Library A to Z

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  • Cradle Cap
  • Cradle cap (infant seborrheic dermatitis) is scaly patches on a baby's scalp. Cradle cap isn’t serious, but it can cause thick crusting and white or yellow scales. Some babies can also have seborrheic dermatitis in the diaper area, and on the face, neck, and trunk. Cradle cap usually clears up within the first year.

  • Immune Deficiencies
  • Detailed information on immune deficiency disorders in children, including Severe Combined Immunodeficiency, Common Variable Immunodeficiency, DiGeorge Syndrome, and X-linked Agammaglobulinemia

  • Immune Disorders
  • Detailed information on the immune system and immune disorders

  • ImmuneThrombocytopenic Purpura in Children
  • ITP is a blood disorder that causes a decrease in the number of platelets in the blood. Platelets help stop bleeding. So, a decrease in platelets can result in easy bruising, bleeding gums, and bleeding inside the body. The lower the platelet count, the greater the risk of bleeding.

  • Impetigo in Children
  • Impetigo is an infection of the skin. When it affects just the surface, it’s called superficial impetigo. Impetigo can also affect deeper parts of the skin. This is called ecthyma. It may occur on healthy skin. Or it may occur where the skin was injured by a cut, scrape, or insect bite.

  • Infant
  • Detailed information on infant health

  • Infant Feeding Guide
  • How much, what, and when to feed your baby can seem daunting. But this cheat sheet will give you the information you need to start your baby on the right “nutritional” foot.

  • Infant Nutrition
  • Choosing how to feed your baby is an important decision that has life-long effects for your baby and for you.

  • Infant of a Mother with Diabetes
  • An infant of a mother with diabetes is a baby who is born to a mother with diabetes. Because the mother has diabetes, the baby is at risk for problems.

  • Infant Play
  • Hang brightly colored objects near your newborn. Sing and talk to your baby. Rock your baby, and take him or her for walks.

  • Infection in Babies
  • Newborns are particularly susceptible to infections. One of the best ways to keep your baby infection-free is to wash your hands before and after handling him or her. Other preventive measures may also be necessary.

  • Insect Stings and Allergic Reactions
  • For most children, the reaction to a sting is short-lived, with redness and swelling followed by pain and itching. For others, however, the allergic reaction to an insect sting can be life threatening.

  • Insect Stings in Children
  • Insect stings can occur anywhere on the body and can be painful and frightening for a child. Most insect stings cause only minor discomfort. Most stings are from honeybees or yellow jackets (also called ground hornets). 

  • Insects in the Ear
  • Don't attempt to remove the insect by poking it with a cotton swab. This may push the insect farther into the ear or cause damage to the middle ear and eardrum.

  • Intestinal Malrotation and Volvulus
  • Intestinal malrotation is a birth defect. It happens when your baby’s intestinal tract doesn’t form as it should during pregnancy. Malrotation occurs when your baby’s intestine doesn’t turn like it should.

  • Intravenous Line and Tubes
  • Because most babies in the NICU are too small or sick to take milk feedings, medications and fluids are often given through their veins or arteries.

  • Intraventricular Hemorrhage
  • If your baby is born prematurely, there are many worries that likely go through your mind. One of the things that can happen is bleeding on the brain. Read on to learn about this and what doctors can do help your baby.

  • Intussusception
  • Intussusception is a serious problem in the intestine. It occurs when one part of the intestine slides inside another part. The intestine then folds into itself like a telescope. This creates a blockage or obstruction. It stops food that is being digested from passing through the intestine.

  • Iron-Deficiency Anemia in Children
  • Anemia is a common health problem in children. The most common cause of anemia is not getting enough iron. A child who is anemic does not have enough red blood cells or enough hemoglobin.

  • Is Your Child at Risk for Hepatitis B?
  • Hepatitis B is a highly contagious, sexually transmitted disease caused by a virus that attacks the liver, possibly causing lifelong liver infection, cirrhosis (scarring) of the liver, liver cancer and death.

  • Is Your Teen Abusing Drugs or Alcohol?
  • Besides having trouble with school and relationships, teenagers taking drugs may display emotional extremes with irritability, anger and changes in sleep patterns.

  • Newborn Crying
  • Crying is the way babies communicate. They cry because of hunger, discomfort, frustration, fatigue, and even loneliness.

  • Osteogenesis Imperfecta in Children
  • Osteogenesis imperfecta is also known as brittle-bone disease because it is characterized by bones that break easily without a specific cause.

  • Thumb Sucking
  • Thumb sucking is normal in infants and young children. It shouldn't cause any permanent problems if your child stops by age 5.