Totally agree with CLKD, I was suffering persistent bladder issues and cystitis, had everything checked out, but it’s true, vaginal atrophy can be the root issue.
They started me on Vagifem and I also use YES vaginal moisturiser, and (touch wood!) no further bladder issues - as the Practice Nurse said to me, it’s all the dryness that causes irritation so if you can alleviate that it’ll help!