Genetic, Chromosomal & Metabolic Conditions

• Genetics

  Genetics is the study of genes, which carry information that gets passed from one generation to the next.

• Goiters and Thyroid Nodules

  An enlarged thyroid gland is a lump that can be felt under the skin at the front of the neck. When it’s big enough to see easily, it’s called a goiter. A thyroid nodule is a lump or enlarged area in the thyroid gland.

• Hemophilia

  Hemophilia is a rare bleeding disorder that prevents the blood from clotting properly. With modern treatment, most kids who have it can lead full, healthy lives.

• Hemophilia: Handling Bleeds

  Kids with hemophilia can bleed easily or longer than normal. So it’s important for parents to know how to handle bleeding when it happens.

• Hereditary Hemochromatosis

  This genetic disease causes the body to store too much iron. Learn more about hemochromatosis.

• Hydroxyurea for People With Sickle Cell Disease

  Hydroxyurea is a medicine that can help kids and teens who have sickle cell disease. Find out how it works.

• Hyperthyroidism and Graves’ Disease

  Hyperthyroidism happens when the thyroid gland sends too much thyroid hormone into the blood. The most common cause of hyperthyroidism is Graves’ disease.

• Hypochondroplasia

  Hypochondroplasia is a condition that affects the growth of bone and cartilage. Kids who have it are shorter than other kids of the same age).

• Hypothyroidism and Hashimoto’s Thyroiditis

  An underactive thyroid makes too little thyroid hormone, causing hypothyroidism. Hashimoto’s thyroiditis, which causes most cases of hypothyroidism in kids and teens, is a condition in which the immune system attacks the thyroid.

• If Your Baby Has a Birth Defect

  If your child has a birth defect, you don’t have to go it alone – many people and resources are available to help you.