First, best of luck to your husband,and to you.
Some additional causes of hematuria can be exercise and also use of some over the counter medications that can contribute to easy bleeding (by reducing clotting abilities); these include aspirin and various nsaids such as ibuprufen. Prescription anti-clotting drugs such as warfarin (coumadin) can contribute to bleeding.
Even if no cancer is detected, your urologist may recommend having your husband go back to more frequent cystoscopies than annually. The general practice is cystoscopy every 3 months for the first 2 years, then every 6 months for the next 3 years, and if all remains "all clear" (no recurrence) at the 5-year point, then the cystosopies are done annually, unless there is some reason to continue more frequently. It sounds from your post that your husband was already on the annual exam schedule, though he's barely past the 5-year mark.
Ann
Small TA Grade 1, May-06; recur (2 tiny), same, June-08; TURBTs both times. BCG begun July-08, dosage to 1/3rd May-10, completed treatment December-11. All clear since 2008.