Conversation: The conversation between human and AI assistant.
[|Human|] Dear doctors, my father-in-law has 4th stage prostate cancer. The cancer cells has already spread to the bones. He is already 85 years old. He was given harmone injections 2 times already, but the PSA level only dropped to 34 in January from 48. His urologist is calling for a biosy to be done to confirm 100% that the cancer cells are from the prostate. How can a biosy help at this stage of my father-in-laws illness? Can a stronger dose of hormone injection be given with going through a biosy? We are worried about the pain and risk involved. Thank. From Lim
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. He has cancer spread in bone but if PSA level is 34 then is prostate biopsy should be done. Biopsy will help you find the origin of cancer. If it arises from prostate then biopsy gives you idea. If biopsy is normal then he may have other cancer and treatment is changed. So go for the prostatic biopsy and take treatment accordingly. Hope I have answered your question, if you have any doubts then contact me at bit.ly/ Chat Doctor. Thanks for using Chat Doctor. Wish you a very good health.