This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
|Medical Terms||Other Names||
|Percent of people who have these symptoms is not available through HPO|
Absent speech development
Lack of language development
Lack of speech
No speech development
No speech or language development
Nonverbal[ more ]
Aggressiveness[ more ]
Disorder of involuntary muscle movements
Decreased muscle tone
Low muscle tone[ more ]
Onset in first year of life
Onset in infancy[ more ]
Mental retardation, nonspecific
Mental-retardation[ more ]
Involuntary muscle contractions
Trouble sleeping[ more ]
Repeated seizures without recovery between them
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
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