Dilatation of intrahepatic bile ducts with yellowing skin and no other pain may be caused by intrahepatic bile duct stones, or it may be caused by compression of liver cancer, or it may be caused by compression of pancreatic head cancer, with different causes and different treatments, and the length of surgical treatment varies from person to person. 1. Intrahepatic bile duct stones: patients with intrahepatic bile duct stones may have the symptoms of dilatation of intrahepatic bile ducts, yellowing of skin and absence of pain due to the blockage of stones, and the treatment can be carried out through minimally invasive laparoscopic surgery or open surgery, and usually they can be discharged from hospital in 7-10 days after surgery. 2. Liver cancer: If liver cancer grows near the liver gate, such as hepatoportal cholangiocarcinoma, it may compress the bile ducts, resulting in intrahepatic bile ducts dilatation, yellowish skin and painless symptoms, which can be treated by surgery, and can be discharged from the hospital in 7~10 days after the surgery in general, but if biliary-intestinal anastomotic fistula occurs, it may need 1~2 months to recover and be discharged from the hospital. 3. Pancreatic head cancer: pancreatic head cancer is a malignant tumor originated from the head of pancreas, because the head of pancreas is adjacent to bile ducts, therefore, the compression of pancreatic head cancer can also lead to the symptoms of dilatation of intrahepatic bile ducts, yellowing of skin and absence of pain, which can be treated by surgery, chemotherapy and radiotherapy, and can be discharged from the hospital in 10-15 days after the surgery in general. In addition to the above diseases, other factors can also cause patients to develop symptoms of dilatation of intrahepatic bile ducts, yellowing of the skin, and absence of other pain. It is recommended to consult a doctor as soon as possible to find out the cause and ask the doctor to dispose of it.