As Alan said, it could very well be irritation. BCG does a real number on the bladder lining...that is why you are doing it! But ALWAYS mention things like this to your doctor so that he/she is aware of what is going on. If there is open irritation when the time comes for your next BCG they will no doubt skip a week or so until it heals.
I often had blood and clots a few days after a treatment.
Sara Anne
Diagnosis 2-08 Small papillary TCC; CIS
BCG; BCG maintenance
Vice-President, American Bladder Cancer Society
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