Bile then goes through the common bile duct into your intestines, where it helps break down fats. Eventually, this liquid leaves your body in your poo.
However, cancer that starts in the head of the pancreas can eventually press on this duct, leading to blockage.
“When the common bile duct becomes blocked, bile can’t reach the intestines, and the amount of bilirubin in the body builds up,” explains the cancer portal.
This explains how pancreatic cancer can lead to jaundice as well as the tell-tale sign in your poo.
READ MORE: Taking two vitamin supplements together found to increase cancer risk by almost 30% – BMJ