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Pulmonary Atresia What is pulmonary atresia? Pulmonary atresia (PA) is a heart defect. It happens when the baby's heart doesn’t form as it should in the uterus. This can happen during the first 8 weeks of pregnancy. PA is a problem with the opening of the pulmonary valve. This

Congenital Heart Disease According to the American Heart Association, about 9 of every 1,000 babies born in the U.S. have a congenital heart defect. This is a problem that occurs as the baby's heart is developing during pregnancy, before the baby is born. Congenital heart defects

Circumcision for Children What is circumcision for children? Circumcision is a surgery to remove the skin covering the end of the penis. This skin is called the foreskin. This surgery is most often done 1 or 2 days after a baby’s birth. Circumcision can also be done on older

Hip Fracture What is a hip fracture? A hip fracture is a break in the thighbone (femur) of your hip joint. Joints are areas where two or more bones meet. Your hip joint is a "ball and socket" joint, where your thighbone meets your pelvic bone. The ball part of your hip joint is

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

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

Aortic Stenosis in Children What is aortic stenosis in children? Aortic stenosis means that your child has a heart valve that is too narrow or is blocked. The aortic valve is 1 of 4 heart valves that keep blood flowing through the heart. The valves make sure blood flows in only

Astrocytoma in Children What is an astrocytoma in children? An astrocytoma is a type of brain tumor. A brain tumor is an abnormal growth of tissue in the brain. The brain is part of the central nervous system (CNS). The CNS also includes the spinal cord. The main parts of the

Cancer Overview What is cancer? Cancer is an abnormal growth of cells. The whole body is made of cells that act and grow in controlled ways as the body needs them. Cells are controlled by genes. The genes in any cell in the body can be damaged. Then the cell can grow out of

Food Allergies in Children What is food allergy in children? A food allergy is when your child’s body has a bad immune reaction to a certain food. This is different from a food intolerance, which does not affect the immune system. This is true even though some of the same signs