<s>[INST] i had a CBD stricture. My bilirubin levels went up and I had obstructive jaundice. Initially with MRCP procedure doctors said I had a stone in my bile duct. They performed ERCP to remove the stone but after procedure doctors said they could not find any stone. They put a plastic stent in my bile duct. I researched the net and found that CBD stricture can be caused by an injuey, a previous surgery, or pancreatic cancer. I did not have the previous two. When I asked the doctors about the pancreatic cancer, they said they did a test for that and it would have shown up on the MRCP reports. Anyway, any idea why the CBD stricture might have been caused? I am overweight (115 kg, 27 yrs, Male). When I was admitted to the hospital, i weighed 95 kgs. I also used to drink and smoke. [/INST] Hi there,Thanks for posting in HCM.Biliary stricture can be benign ( meaning not cancerous) or malignant ( due to cancer).The benign causes include stones, injury and previous surgery.Malignant causes include cancer of the bile duct or the head of the pancreas.If you can post the MRCP report I can tell you the probable cause.Regards. </s>