What is the prevalence of Primary Hyperoxaluria?

Primary Hyperoxaluria is a rare, life-threatening metabolic disorder with an estimated global prevalence of 1 to 3 per million people and an incidence of approximately 1 per 120,000 live births. Due to the high rate of misdiagnosis as simple kidney stones, these figures are considered conservative estimates of the true burden of Primary Hyperoxaluria.

How common is Primary Hyperoxaluria?

Primary Hyperoxaluria is classified as an ultra-rare disease. While exact global numbers are difficult to track, research suggests that the prevalence of Primary Hyperoxaluria is significantly higher in populations with high rates of consanguinity. Because symptoms often mimic common urolithiasis (kidney stones), many individuals remain undiagnosed until they reach advanced stages of kidney failure, meaning the actual number of people living with Primary Hyperoxaluria is likely higher than current clinical literature reflects.

What are the demographic factors for Primary Hyperoxaluria?

The distribution of Primary Hyperoxaluria shows no significant bias toward males or females, affecting both genders equally. Regarding age of onset, Primary Hyperoxaluria presents across a wide spectrum:

• Infantile onset: Often the most severe form, presenting in the first year of life.


• Childhood onset: Frequently characterized by recurrent nephrolithiasis (stones) and nephrocalcinosis.


• Adult onset: Often diagnosed after years of recurrent stone formation or when the patient presents with end-stage renal disease (ESRD).

Why is accurate data on Primary Hyperoxaluria difficult to obtain?

Clinical data on Primary Hyperoxaluria is often hampered by diagnostic delays. Patients frequently undergo multiple surgeries for kidney stones before a metabolic workup is performed. Within the DiseaseMaps.org community, two individuals have confirmed their diagnosis, highlighting the rarity and the isolation often felt by those navigating Primary Hyperoxaluria. These real-world accounts emphasize the necessity for better awareness among primary care providers to improve early detection.

Next steps

• Consult with a nephrologist or a metabolic specialist to discuss genetic testing for Primary Hyperoxaluria.


• Request a 24-hour urine collection or plasma oxalate test if you have a history of recurrent calcium oxalate stones.


• Connect with the DiseaseMaps.org community to share experiences and learn from others living with this rare condition.


• Monitor updates from the Oxalosis & Hyperoxaluria Foundation for the latest clinical trial opportunities.

Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.

References

• Orphanet: Primary Hyperoxaluria (ORPHA:416).


• NIH Genetic and Rare Diseases Information Center (GARD): Primary Hyperoxaluria.


• OMIM (Online Mendelian Inheritance in Man): Entry #259900 (Primary Hyperoxaluria Type 1).


• Oxalosis & Hyperoxaluria Foundation (OHF): Clinical resources and patient data.