What are the symptoms of Angelman syndrome?
Angelman syndrome affects approximately 1 out of every 15,000 to 20,000 children born in the United States, reports the Angelman Syndrome Foundation. A genetic disorder, Angelman syndrome causes a variety of symptoms that doctors use to diagnose the syndrome.Time FrameSymptoms of Angelman syndrome develop during childhood, but typically not until a child is between the ages of 2 and 5, according to the Angelman Syndrome Foundation.Head SizeAt least 80 percent of children with Angelman syndrome typically develop microcephaly, an abnormally small cranium due to brain growth stopping early, says the Angelman Syndrome Foundation.AppearanceChildren with Angelman syndrome tend to have very wide mouths and a large or prominent chin, the Angelman Syndrome Foundation says.Other SymptomsChildren with Angelman often display signs of happiness such as laughter, smiling and excitement at inappropriate times, according to the National Society for Biotechnology Information. Other symptoms include men
