<s>[INST] Hi. I m Charles. I have a fistula in my righf arm and ive had it since 2009. Anyway I havent used it since January. But the other day it stopped working. Now its been clotted before but I had emergency surgery to open it back up but im on peritoneal dialysis now. Im just womdering if its safe for me to be walking around with a clot in my arm, or will I be ok,...? [/INST] HIT hank for skin to ChatDoctorI really appreciate your concern and I think you must be talking in the sense of shunt that must have been placed in your arm and which is being blocked, if this is correct then just do nothing because such shunt usually get blocked soon, it would be better to remove the shunt if possible even is you do not remove this then also it does not matter, take care and have nice day. </s>