The causes of body itching after liver disease surgery may be allergic reaction, elevated bilirubin, elevated bile acids, etc. 1. Allergic reaction: After liver disease surgery, if you come into contact with allergy-inducing substances such as food, drugs and other substances, it may cause allergic reaction, and then the symptoms of itchy body may appear. 2. Elevated bilirubin: After surgery for liver disease, bilirubin may be elevated due to obstructive jaundice, at this time, itchy symptoms may occur. 3. Elevation of bile acids: after surgery for liver disease, due to acute and chronic hepatitis, bile duct abnormalities and other factors, may lead to abnormal elevation of bile acids, at this time may appear body itching symptoms. If symptoms of itchy body appear after liver disease surgery, you should seek medical treatment in time.