Charcot’s triad (Charcot) is a collection of symptoms named after people, which mainly contains three symptoms, namely abdominal pain, fever, and jaundice, and is considered to be a very typical clinical manifestation of choledochal stones. Specific symptoms are as follows: 1, abdominal pain, due to the stone embedded in the bile duct, resulting in increased tension in the bile duct or bile duct spasm leading to pain, usually paroxysmal colic, and it is continuously aggravated; 2, choledocholithiasis fever accompanied by chills, generalized shivering, the body temperature can be up to 39 ° C, or even 40 ° C or more, it is the manifestation of septic cholangitis, mainly a large number of bacteria may be into the bloodstream leading to systemic reactions; 3, jaundice, mainly Jaundice, mainly because the bile fails to enter the intestines after the bile ducts are blocked by gallstones, and enters the bloodstream through the liver, and then goes to all parts of the body along with the bloodstream, resulting in yellowing of the skin and sclera.