I am 51 years old. i have been suffering from urinary tract infection for six years. I have undergone surgery 3 times up to now. Each time urethrascopy and bladder mouth dialation have been done. but after one year of the surgery again UTI take place. but no fever, back pain the only symptom is having drying of mouth parts.now a days also i am having same symtoms of dry mouth. last surgery was done in january 2008.according to today report pus cells 3-5, organisms +++, red cells occassionaly, according to culture re[orts organisms are E.coli.is it normal? or what must I do for this situation?