Your doctors have begun the appropriate work-up and it appears that you do not have cancer. I do think that after your cystitis has been treated with an appropriate course of antibiotics you should have the cytology repeated. The fact that your doctor performed random biopsies of your bladder means that he wanted to pursue this work-up to the end and put this issue to rest for you. Since the random biopsies are negative for cancer, and they show some chronic infection, you can feel secure about being cancer free. The peak age is in the sixth to eighth decades and is rare before the age of forty.
Males are three times as likely as females to develop the disease.
It sounds like you probably have cystitis and for a male you need to know why you have this problem. In regards to possible cancer of the bladder, I think your doctors are on top of the situation, and they will follow you as closely as necessary. It is still possible to have an early stage cancer that cannot be seen or carcinoma in situ, a type of superficial bladder cancer, but with all of your negative studies and biopsies, there is nothing else for your doctors to do at this time other than follow you in the future. This information is provided for general medical educational purposes only. Please consult your physician for diagnostic and treatment options pertaining to your specific medical condition.