Before attributing the result to cystitis, it would be wise to ensure that it isn't due to cancer.
I would recommend a cystoscopy for a more thorough examination. Further tests to be consider would be an intravenous pyelogram. There may be some role for urinary biomarkers, but they do not take the place of cystoscopy - you may want to inquire about these tests with your urologist.
If everything is negative, then it may be possible that it is related to cystitis.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b