Lab-grown ‘mini-bladder’ helps explain why urinary tract infections keep coming back

For many people, a urinary tract infection (UTI) doesn't really end when the antibiotics run out. The burning and constant trips to the bathroom fade, then return weeks or months later.

DimaBerlin/Shutterstock For many people, a urinary tract infection (UTI) doesn’t really end when the antibiotics run out. The burning and constant trips to the toilet fade, then return weeks or months later. UTIs affect more than 400 million people worldwide each year, according…