National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Spastic paraplegia 9



Other Names:
SPG9; Autosomal dominant spastic paraparesis; Cataracts, motor neuronopathy, short stature and skeletal abnormalities; SPG9; Autosomal dominant spastic paraparesis; Cataracts, motor neuronopathy, short stature and skeletal abnormalities; Bilateral cataracts, gastroesophageal reflux, and spastic paraparesis with amyotrophy See More
Categories:

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.

Showing of 29 |
Medical Terms Other Names
Learn More:
HPO ID
5%-29% of people have these symptoms
Abnormal cerebellum morphology
Abnormality of the cerebellum
Cerebellar abnormalities
Cerebellar abnormality
Cerebellar anomaly
[ more ]
0001317
Impaired vibratory sensation
Decreased vibration sense
Decreased vibratory sense
Diminished vibratory sense
Impaired vibratory sense
[ more ]
0002495
Nystagmus
Involuntary, rapid, rhythmic eye movements
0000639
Urinary incontinence
Loss of bladder control
0000020
Urinary urgency
Overactive bladder
0000012
Percent of people who have these symptoms is not available through HPO
Abnormal upper motor neuron morphology
Abnormal shape of upper motor neuron
0002127
Abnormality of pelvic girdle bone morphology
Abnormal shape of pelvic girdle bone
0002644
Autosomal dominant inheritance 0000006
Babinski sign 0003487
Carpal bone hypoplasia
Small carpal bones
Small carpals
[ more ]
0001498
Cataract
Clouding of the lens of the eye
Cloudy lens
[ more ]
0000518
Delayed skeletal maturation
Delayed bone maturation
Delayed skeletal development
[ more ]
0002750
Dysarthria
Difficulty articulating speech
0001260
Dysfunction of lateral corticospinal tracts 0007299
Gait disturbance
Abnormal gait
Abnormal walk
Impaired gait
[ more ]
0001288
Gastroesophageal reflux
Acid reflux
Acid reflux disease
Heartburn
[ more ]
0002020
Generalized amyotrophy
Diffuse skeletal muscle wasting
Generalized muscle degeneration
Muscle atrophy, generalized
[ more ]
0003700
Genetic anticipation 0003743
Hiatus hernia
Stomach hernia
0002036
Hyperreflexia
Increased reflexes
0001347
Lower limb muscle weakness
Lower extremity weakness
Lower limb weakness
Muscle weakness in lower limbs
[ more ]
0007340
Lower limb spasticity 0002061
Motor polyneuropathy 0007178
Pes cavus
High-arched foot
0001761
Short stature
Decreased body height
Small stature
[ more ]
0004322
Slow progression
Signs and symptoms worsen slowly with time
0003677
Spastic paraplegia 0001258
Specific learning disability 0001328
Vomiting
Throwing up
0002013
Showing of 29 |
Last updated: 7/1/2020

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.

Healthcare Resources


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.

Clinical Research Resources

  • The Centers for Mendelian Genomics program is working to discover the causes of rare genetic disorders. For more information about applying to the research study, please visit their website.

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.

Social Networking Websites

  • RareConnect is an online social network for patients and families to connect with one another and share their experience living with a rare disease. The project is a joint collaboration between EURORDIS (European Rare Disease Organisation) and NORD (National Organization for Rare Disorders). Click on the link above to view the community for Hereditary spastic paraplegia.

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.

In-Depth Information

  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Spastic paraplegia 9. Click on the link to view a sample search on this topic.

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.