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||
|80%-99% of people have these symptoms|
|Global developmental delay||0001263|
Low glucose levels in cerebral spinal fluid
Progressively abnormally small cranium
Progressively abnormally small skull[ more ]
|30%-79% of people have these symptoms|
Mental disorientation[ more ]
|Delayed speech and language development||
Deficiency of speech development
Delayed language development
Delayed speech acquisition
Delayed speech development
Impaired speech and language development
Impaired speech development
Language development deficit
Late-onset speech development
Poor language development
Speech and language delay
Speech and language difficulties
Speech delay[ more ]
Difficulty articulating speech
Mental retardation, nonspecific
Mental-retardation[ more ]
Inability to move
|Paroxysmal involuntary eye movements||0007704|
|5%-29% of people have these symptoms|
Trouble sleeping[ more ]
Squint eyes[ more ]
|Percent of people who have these symptoms is not available through HPO|
|Abnormality of metabolism/homeostasis||
Metabolism abnormality[ more ]
Onset in first year of life
Onset in infancy[ more ]
|Specific learning disability||0001328|
Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.
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.
New NCATS Rare Diseases Research Video
December 27, 2017
Rare Disease Day at NIH on March 1, 2018
December 19, 2017
2017 Million Dollar Bike Ride Pilot Grant Program
August 30, 2017
2016 Million Dollar Bike Ride Pilot Grant Program
August 15, 2016
Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know.