17. Hematuria and other kidney diseases
When the kidneys are overwhelmed with uric acid, they may also suffer from uric acid nephropathy. In severe cases, these patients may develop progressive renal failure, hypertension, and other problems related to renal insufficiency. Hematuria is a common symptom in these patients, along with dysuria, flank pain, and changes in urinary frequency. Patients are at a higher risk of kidney disease as a gout complication if they have diabetes or hypertension.