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Hirschsprung Disease in Children What is Hirschsprung disease in children? Hirschsprung disease is a rare birth defect. It affects the nerve cells in the large intestine. These nerve cells control the muscles that move food and waste, or stool, through the large intestine. The

Autism Spectrum Disorder in Children What is autism spectrum disorder in children? Autism spectrum disorder (ASD) is a problem that affects a child’s nervous system and growth and development. It often shows up during a child’s first 3 years of life. Some children with ASD seem

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 baby to move through the birth canal. Labor usually starts 2 weeks before or after the estimated

Lupus What is lupus? Systemic lupus erythematosus (SLE or lupus) is an autoimmune disease that causes your body’s immune system to attack its own cells and tissues. It causes episodes of inflammation to various parts of the body. It can affect your joints, tendons, and skin. It

Prematurity What is prematurity? A baby born before 37 weeks of pregnancy is considered premature or born too early. Other terms used for prematurity are preterm and the nicknames "preemie" or "premie." About 1 in every 10 infants are born prematurely. Twins and other multiples

Arrhythmias in Children What are arrhythmias in children? An arrhythmia is an abnormal heart rhythm. When a child has an arrhythmia, abnormal electrical signals sent through the heart muscle may cause the heart to beat too fast (tachycardia), too slow (bradycardia), or in an

Juvenile Idiopathic Arthritis What is juvenile idiopathic arthritis? Juvenile idiopathic arthritis (JIA) is a form of arthritis in children. Arthritis causes joint swelling (inflammation) and joint stiffness. JIA is arthritis that affects 1 or more joints for at least 6 weeks in

Turner Syndrome (Monosomy X) in Children What is Turner syndrome (TS) in children? Turner syndrome (TS) is a genetic disorder that occurs in girls. It causes many traits and problems. Girls with TS are shorter than most girls. They don’t go through normal puberty as they grow

Acne What is acne? Acne is a disorder of the hair follicles and oil glands (sebaceous glands). The oil glands secrete oils (sebum) to keep the skin moist. When the glands get clogged, it can lead to pimples and cysts. Acne is very common. People of all races and ages have acne

Hemophilia What is hemophilia? Hemophilia is an inherited bleeding disorder. People with hemophilia bleed easily because they don’t have enough of one of the clotting factors in their blood. Clotting factors are needed for blood to clot. Blood clots to prevent excessive bleeding