Complications

Untreated primary hyperoxaluria can eventually damage your kidneys. Over time your kidneys may stop working. For some people, this is the first sign of the disease.

Signs and symptoms of kidney failure include:

• Decreased urine output or no urine output at all
• Feeling generally ill and tired
• Loss of appetite, nausea and vomiting
• Pale skin color related to anemia
• Swelling of hands and feet

Oxalosis in its late stages can cause a variety of complications outside the kidney, including bone disease, anemia, skin ulcers, heart and eye problems, and in children, a failure to develop and grow normally.