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|
|Abnormality of movement||
Unusual movement[ more ]
|Cherry red spot of the macula||0010729|
Loss of developmental milestones
Mental deterioration in childhood[ more ]
Hearing defect[ more ]
|Increased muscle lipid content||
Fat accumulation in muscle fibers
Fat deposits in muscle fibers
Lipid accumulation in skeletal muscle
Skeletal muscle lipid accumulation[ more ]
Mental retardation, progressive
Progressive mental retardation[ more ]
Increased size of skull
Large head circumference[ more ]
|30%-79% of people have these symptoms|
Low or weak muscle tone
|Recurrent respiratory infections||
Frequent respiratory infections
Multiple respiratory infections
respiratory infections, recurrent
Susceptibility to respiratory infections[ more ]
Increased spleen size
|Percent of people who have these symptoms is not available through HPO|
Progressive dementia[ more ]
|Exaggerated startle response||0002267|
Decreased muscle tone
Low muscle tone[ more ]
Onset in first year of life
Onset in infancy[ more ]
|Poor head control||0002421|
Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.
If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.
If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.
You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.
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.
2017 Million Dollar Bike Ride Pilot Grant Program
August 30, 2017
2016 Million Dollar Bike Ride Pilot Grant Program
August 15, 2016
Gordon Research Conference and Gordon Research Seminar on Lysosomes and Endocytosis
Sunday, June 15, 2014 -
Friday, June 20, 2014
Location: Proctor Academy, Andover, NH
Description: The main goal of the Lysosomes and Endocytosis GRC is to foster the dissemination of current research results and the establishment of new research areas and new collaborations in the area of the cell biology of endocytosis, lysosomes, endosomes and related organelles. We hope that many of these new directions and collaborations will be directed toward the etiology, diagnosis and treatment of rare genetic diseases such as lysosomal storage disorders, Hermansky-Pudlak syndrome, Chediak-Higashi syndrome, Niemann Pick disease and tuberous sclerosis, among others.
Contact: Alexandra Ainsztein, Ph.D.(301) 594-0828, Alexandra.Ainsztein@nih.gov
Co-funding Institute(s): National Institute of General Medical Sciences, Office of Rare Diseases Research
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. Submit a new question
On what chromosome is the gene that causes Tay-Sachs disease? Is this condition sex linked? See answer
I have a friend whose 8 month-old baby was recently diagnosed with Tay-Sach disease. Very few other children in the my country have been diagnosed with this disease and I’m desperate to learn more about it such its treatment and the availability of clinical trials.