There can be many causes. Peripheral Neuropathy, chemo induced, diabetic, etc., can cause incontinance. One of the side effects for Cisplatin can be CIPD..Chemo Induced Peripheral Neuropathy. A UTI doesn't necessarily have to be accompanied by other symptoms like pain. Medications can cause it too, like muscle relaxers. Drinking excess water.......Good luck, and hope it's temporary.