Primary Hyperoxaluria Type 1: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Primary Hyperoxaluria Type 1?
A primary care doctor is often the first to spot the problem. Treatment usually involves a nephrologist, a kidney specialist. Some patients also see a geneticist or a urologist, and the primary care doctor helps coordinate care. 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
Primary hyperoxaluria type 1 is a rare inherited disease in which the body makes too much oxalate, a natural waste chemical. Healthy kidneys filter oxalate out in the urine, but too much of it forms kidney stones and, over time, can damage other organs.
Symptoms
The most common sign is kidney stones, which can cause sharp pain in the back or side, blood in the urine, and pain when urinating. If the kidneys fail, oxalate can collect in the bones, eyes, skin, and heart.
Causes and who gets it
This disease is passed down through families. A child must get one changed gene, called a mutation, from each parent. Because parents usually carry only one changed copy, they often do not know they are carriers.
How doctors diagnose it
Doctors start with a medical history, a physical exam, and urine and blood tests. Urine tests can show high oxalate levels, and blood tests show kidney function. Genetic testing can confirm the diagnosis.
Treatment
Treatment aims to lower oxalate levels and protect the kidneys. Doctors often prescribe medicines that keep oxalate from forming stones and encourage drinking plenty of fluids. Some newer medicines use RNA interference, which reduces the oxalate the liver makes. Severe disease may require dialysis or a combined liver and kidney transplant.
When to see a doctor
Anyone with symptoms of kidney stones should see a doctor. Warning signs include severe pain in the back or side, blood in the urine, fever with pain, or trouble passing urine. Early testing can find the disease before serious kidney damage.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance; a concierge doctor usually charges more and often works alongside insurance. Either can spend extra time on rare diseases, ordering tests, managing medicines, and monitoring kidney health, and will refer to a nephrologist when needed.
Common questions
Is primary hyperoxaluria type 1 curable?
A combined liver and kidney transplant can fix the gene problem in the liver and replace failed kidneys. But not every patient needs or qualifies for a transplant. Medicines can lower oxalate and reduce stones. Outcomes differ from person to person.
Can adults get this disease, or is it only in children?
It can appear at any age. Many people are diagnosed in childhood, but some adults do not learn they have it until they have repeated kidney stones or kidney problems.
Should my family members get tested?
Because the disease is inherited, close relatives may be carriers. A genetic counselor can explain testing options for family members. This is a personal choice that families can discuss with their doctors.
Can diet alone control this disease?
Diet changes, like drinking more fluids and limiting certain foods, can help lower the risk of stones. But diet alone usually cannot control the disease, because the liver makes too much oxalate on its own. Most patients need medicine as well.
Sources
- MedlinePlus - Primary hyperoxaluria
- NIH Genetic and Rare Diseases Information Center - Primary hyperoxaluria, type I
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.
