Schindler Disease: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Schindler Disease?
Because Schindler disease is so rare, care usually involves a team that may include a medical geneticist, a neurologist, and a nephrologist. A primary care doctor helps coordinate this team. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
Schindler disease is a rare inherited condition in which the body cannot break down certain sugar-like substances called glycoproteins. These substances build up inside cells and cause damage over time. Type I, the infantile form, causes serious nerve problems early in life. Type II, the adult form, is usually much milder.
Symptoms
Babies with Type I often seem healthy at birth, but within the first year they may develop seizures, lose skills they had learned, and develop vision and hearing problems. People with Type II often have clusters of small dark red spots on the skin, widened blood vessels, kidney problems, and hearing loss.
Causes and who gets it
Schindler disease is caused by changes, called mutations, in a gene known as NAGA. This gene tells the body how to make an enzyme called alpha-N-acetylgalactosaminidase. When it is missing or does not work, the substances it should break down pile up in cells. A child must receive a changed copy of the gene from both parents to have the disease.
How doctors diagnose it
Doctors start by asking about symptoms and family history. A blood or urine test can measure the activity of the enzyme, and low activity points toward the diagnosis. Genetic testing can confirm the result.
Treatment
There is no cure for Schindler disease. Treatment focuses on easing symptoms and keeping the person comfortable. Children with Type I may need medicines to control seizures, physical therapy, and support for feeding and breathing. People with Type II may need regular checks of their kidneys, hearing, and blood vessels.
When to see a doctor
Parents should talk to a doctor if a baby stops reaching milestones, has seizures, or loses skills they once had. Anyone with unexplained skin spots, hearing loss, or kidney problems that run in the family should seek medical advice.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance for visits. A concierge doctor usually charges more and often works alongside insurance. Either one can spend extra time with families facing a rare diagnosis and coordinate care among specialists.
Common questions
Is Schindler disease life threatening?
Type I is serious and affects the brain and nerves. Children with this form usually need intensive supportive care. Type II is much milder, and some people have very few problems. Outcomes vary from person to person.
Can Schindler disease be prevented?
The disease cannot be prevented because it is inherited. Couples with a family history can meet with a genetic counselor before or during pregnancy. They can learn about their chances of having a child with the condition.
How is it different from other storage diseases?
Each lysosomal storage disease involves a different missing enzyme. In Schindler disease, the missing enzyme is alpha-N-acetylgalactosaminidase. Genetic testing is usually needed to tell these conditions apart.
Can adults have Schindler disease?
Yes. Type II is sometimes called the adult form. It may be found in adulthood through skin findings, kidney problems, or family testing. Some adults with the gene changes never develop symptoms.
Sources
- NIH Genetic and Rare Diseases Information Center - Alpha-N-acetylgalactosaminidase deficiency
- MedlinePlus - Alpha-N-acetylgalactosaminidase deficiency
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
