What is hyperoxaluria?
A person with hyperoxaluria has elevated levels of a salt, called oxalate, in the urine. Oxalate can combine with calcium to form calcium oxalate, which is the most common cause of kidney stones. Hyperoxaluria greatly increases a person's risk of kidney stones. Hyperoxaluria may be inherited: common causes include increased dietary intake, Crohn's disease or ulcerative colitis.

What are the symptoms of hyperoxaluria?
Symptoms of hyperoxaluria are caused by the formation of kidney stones that obstruct the flow of urine. Common symptoms kidney stones caused by hyperoxaluria include back pain, flank pain, and abdominal pain. Additional symptoms may include red urine, frequent urination, inability to urinate, nausea, and vomiting.

How does the doctor treat hyperoxaluria?
Treatment of hyperoxaluria may include increasing oral fluids, avoidance of vitamin C, low oxalate diet, magnesium supplements, and medications for hyperoxaluria.