Conversation: The conversation between human and AI assistant.
[|Human|] My brother with Colon CA stage 4, recently found out that metastasis has reached his bladder . He has had 4 chemo cycles, the last cycle included target chemo on bladder. It has been 2 weeks since then. He still urinates with blood but this morning he urinated with bright red blood dripping after urination. Is this part of the manifestations of his bladder metastasis? Or could it be something else?
[|AI|]  Hello, Thanks for your query. Passing blood in the urine may be due to many causes. But mostly it might be due to bladder tumors and kidney tumors. Sometimes due to stone disease and also after chemotherapy (cystitis). You had already mentioned that your brother is having colon cancer infiltrating into bladder. So now his problem of blood in the urine is mostly due to this infiltration. The chances of new bladder tumor to occur is rare but still may occur. You can get an ultrasound of the abdomen to see if there are any other lesions in the bladder apart from this infiltration. If there are any other lesions then they a be further worked up. Good luck.