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 | Learn More: HPO ID |
|---|---|---|
| 80%-99% of people have these symptoms | ||
| Progressive cerebellar |
0002073 | |
| 30%-79% of people have these symptoms | ||
| Abnormal flash visual evoked potentials | 0007928 | |
| Abnormal nerve conduction velocity | 0040129 | |
| Abnormality of somatosensory evoked potentials | 0007377 | |
| Atrophy/Degeneration affecting the brainstem | 0007366 | |
| Bradykinesia |
Slow movements
Slowness of movements
[ more ]
|
0002067 |
| Bulbar signs | 0002483 | |
| Cerebellar atrophy |
Degeneration of cerebellum
|
0001272 |
| Chorea | 0002072 | |
|
Difficulty articulating speech
|
0001260 | |
|
Poor swallowing
Swallowing difficulties
Swallowing difficulty
[ more ]
|
0002015 | |
| 0001332 | ||
| Inertia | 0030216 | |
| Loss of Purkinje |
0007001 | |
| Memory impairment |
Forgetfulness
Memory loss
Memory problems
Poor memory
[ more ]
|
0002354 |
| Slow saccadic eye movements |
Slow eye movements
|
0000514 |
| Slurred speech | 0001350 | |
| Staring gaze | 0025401 | |
| Upgaze palsy | 0025331 | |
| 5%-29% of people have these symptoms | ||
| Abnormality of masticatory muscle | 0410011 | |
| Dysdiadochokinesis |
Difficulty performing quick and alternating movements
|
0002075 |
| Dysmetria |
Lack of coordination of movement
|
0001310 |
| Fasciculations |
Muscle twitch
|
0002380 |
| Gait imbalance |
Abnormality of balance
Abnormality of equilibrium
Imbalanced walk
[ more ]
|
0002141 |
| Generalized |
Decreased muscle tone
Low muscle tone
[ more ]
|
0001290 |
| Hyperactive deep tendon reflexes | 0006801 | |
| Hypermetric saccades | 0007338 | |
| Hyporeflexia |
Decreased reflex response
Decreased reflexes
[ more ]
|
0001265 |
| Impaired proprioception | 0010831 | |
|
Involuntary, rapid, rhythmic eye movements
|
0000639 | |
| Ophthalmoparesis |
Weakness of muscles controlling eye movement
|
0000597 |
| Optic atrophy | 0000648 | |
| Postural tremor | 0002174 | |
| Respiratory failure | 0002878 | |
| Skeletal muscle atrophy |
Muscle degeneration
Muscle wasting
[ more ]
|
0003202 |
| 1%-4% of people have these symptoms | ||
| Decreased amplitude of sensory action potentials | 0007078 | |
| Decreased motor nerve conduction velocity | 0003431 | |
| Decreased sensory nerve conduction velocity | 0003448 | |
| Percent of people who have these symptoms is not available through HPO | ||
| Abnormality of extrapyramidal motor function | 0002071 | |
| Adult onset |
Symptoms begin in adulthood
|
0003581 |
| Areflexia |
Absent tendon reflexes
|
0001284 |
| 0000006 | ||
| Babinski sign | 0003487 | |
| Bulbar palsy | 0001283 | |
| Cognitive impairment |
Abnormality of cognition
Cognitive abnormality
Cognitive defects
Cognitive deficits
Intellectual impairment
Mental impairment
[ more ]
|
0100543 |
| Dilated fourth ventricle | 0002198 | |
| Distal amyotrophy |
Distal muscle wasting
|
0003693 |
| Dorsal column degeneration | 0007006 | |
| Dysmetric saccades |
Uncoordinated eye movement
|
0000641 |
| Gaze-evoked nystagmus | 0000640 | |
| Genetic |
0003744 | |
| Hyperreflexia |
Increased reflexes
|
0001347 |
| Impaired horizontal smooth pursuit | 0001151 | |
| Impaired vibratory sensation |
Decreased vibration sense
Decreased vibratory sense
Diminished vibratory sense
Impaired vibratory sense
[ more ]
|
0002495 |
| Limb ataxia | 0002070 | |
| Muscular hypotonia |
Low or weak muscle tone
|
0001252 |
| Olivopontocerebellar atrophy | 0002542 | |
| Optic disc pallor | 0000543 | |
| Scanning speech |
Explosive speech
|
0002168 |
|
Involuntary muscle stiffness, contraction, or spasm
|
0001257 | |
| Spinocerebellar atrophy | 0007263 | |
| Spinocerebellar tract degeneration | 0002503 | |
| Supranuclear ophthalmoplegia | 0000623 | |
| Truncal ataxia |
Instability or lack of coordination of central trunk muscles
|
0002078 |
| Urinary bladder sphincter dysfunction | 0002839 | |
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.
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
Is it common to have bowel problems when you have SCA1? See answer
