For years, Susan Johnstone, 53, lived with an embarrassing problem that threatened to take away the activity she loved most: running. She tried everything-even surgery-to keep her bladder leaks at bay ...

Complement 3 glomerulopathy (C3G) is diagnosed with a combination of a clinical evaluation, blood tests, urine tests, and a renal (kidney) biopsy. The only way to definitively diagnose C3G and its ...