UTI's in the Elderly can be left untreated for the very simple reason that in the elderly they do not feel the normal symptoms that UTIs usually bring when it starts. A bad UTI can cause delirium, confusion, hallucinations
And if left untreated can cause sepsis which is deadly
I was surprised to see that no one here talked about the use of D-Manoose.
I have given that at the first sign of a UTI and have avoided the use of antibiotics many times in both myself and my aging parents
In layman's terms, It is basically the sugar that is in cranberries. The bacteria or what we think of as "bugs" line the inside of the bladder but will jump off and have a heyday from this simple sugar that they love. Because they they are now floating in the urine they are flushed out very easily