Constant micro.blood in urine for years& multiple utis.cystoscopy has shown redness/irritation in bladder but have been discharged w/no concern.u/s is clear.is bladder irritation a worry & is there anything i can do to fix it?does this explain blood?

Cystitis: Apparently some sort of non-infectious cystitis, e.g. interstial or hemorrhagic cystitis, assuming you have been tested for UTI with negative results. Certain drugs can do this, e.g. anti-depressants, NSAIDs (ibuprofen etc), and others, but many cases have no obvious cause. Presumably you have seen a urologist. If not, you should do so now. Bring a list of all drugs you are taking.