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Coronary Heart Disease What is coronary heart disease? Coronary heart disease happens when the innermost layer of the coronary arteries becomes inflamed and narrowed. This is caused by a buildup of fatty deposits called plaque. These deposits may start in childhood and continue

Anorectal Malformation in Children What is an anorectal malformation in children? Anorectal malformations are birth defects, or problems that happen as an unborn baby is developing during pregnancy. With this defect, the anus and rectum don’t develop properly. They are the lower

Allergy Overview What are allergies? Allergies are due to a problem with the body's immune system. Most allergic reactions happen when the immune system reacts to a false alarm. Normally the immune system attacks harmful things, such as viruses or bacteria. But sometimes it

Adjustment Disorders in Children What is an adjustment disorder in children? An adjustment disorder is an unhealthy emotional or behavioral reaction to a stressful event or change in a person’s life. The response happens within 3 months of the stressful event. Some events that

Polycystic Ovary Syndrome (PCOS) What is polycystic ovary syndrome (PCOS)? Polycystic ovary syndrome (PCOS) is a set of symptoms caused by a problem with a woman’s hormones. It affects the ovaries. These are the small organs that store a woman’s eggs. But it can also affect the

Kidney Failure What is kidney failure? Kidney failure happens when damage results in loss of normal kidney function. There are 2 types of kidney failure—acute and chronic. Acute kidney failure starts abruptly. It can sometimes be reversed. Chronic kidney failure progresses slowly

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

Bacterial Endocarditis in Children What is bacterial endocarditis in children? Bacterial endocarditis is an infection of the inner lining of the heart (endocardium), or the heart valves. It doesn't occur in children very often. But when it does, it can cause serious heart damage

Septic Arthritis (Infectious Arthritis) in Children What is septic arthritis in children? Septic arthritis is an infection in the joint fluid (synovial fluid) and joint tissues. It occurs more often in children than in adults. The infection usually reaches the joints through the

Communication Disorders in Children What are communication disorders in children? A child with a communication disorder has trouble communicating with others. They may not understand or make the sounds of speech. The child may also struggle with word choice, word order, or