Tiffany Reid was just 18 months old when she passed a kidney stone for the first time. Many more would come during the next four decades of her life — along with multiple infections and bladder issues — despite Reid’s efforts to follow her healthcare providers’ advice to drink more water or change her diet. It wasn’t until she was an adult and in kidney failure that she got referred to a kidney specialist (a nephrologist) and finally got a diagnosis. After his suggestion to get genetic testing, Reid discovered she had primary hyperoxaluria (PH), a rare genetic disorder that produces too much o...

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