Oh, and I forgot. If your mother is on certain kinds of high blood pressure medicine and heart medications, they can increase her need to urinate, and that urge may come very quickly without warning. So, I would quiz her doctor about this, especially is she is taking a diuretic. He may be able to prescribe another drug that won't create that problem. I agree with others about the water -- elderly people lose their taste for water as they age, and you really need to ensure that they are getting plenty of water each day to prevent urinary tract infections.