Conditions & Treatments

Overview A baby with hydrocephalus has extra fluid in and around the brain. This fluid is called cerebrospinal fluid (CSF). Most CSF is found in fluid-filled areas (ventricles) inside the brain. Its purpose is to cushion and protect the brain and the spinal cord. Too ...

Hydrops fetalis is severe swelling (edema) in an unborn baby or a newborn baby. It is a life-threatening problem. There are 2 types: immune and nonimmune. ...

Hyper Immunoglobulinemia D Syndrome (HIDS) is a periodic fever syndrome characterized by attacks of fever, arthralgia, skin lesions including cyclical mouth ulcers, and diarrhea. ...

Overview Hyperbilirubinemia happens when there is too much bilirubin in your baby’s blood. Bilirubin is made by the breakdown of red blood cells. It’s hard for babies to get rid of bilirubin at first. It can build up in their blood, tissues, and fluids. Bilirubin ...

Many pregnant women have some nausea and sometimes vomiting in the first trimester. This is called morning sickness. ...

Hyperinsulinemia is a condition that causes individuals to have abnormally high levels of insulin, which is a hormone that helps control blood sugar levels. People with this condition have frequent episodes of low blood sugar (hypoglycemia). ...

Hypermobility syndrome refers to joints that move beyond the normal range with little effort. Joints most commonly affected are the fingers, wrists, elbows and knees. ...

Commonly known as farsightedness, hyperopia is the refractive error in which an image of a distant object becomes focused behind the retina, either because the eyeball axis is too short, or because the refractive power of the eye is too weak. This condition makes close ...

Hyperparathyroidism is when the parathyroid glands make too much parathyroid hormone. The condition is rare in children. ...

Graves disease is an autoimmune disease. The immune system normally protects the body from germs with chemicals called antibodies. ...