Percutaneous hepatic percutaneous biliary drainage is clinically referred to as PTCD, which is generally indicated mainly for obstructive jaundice, because of high bilirubin, excessive surgical risk, and the possibility of postoperative hemorrhage or liver failure and the use of temporary yellowness reduction. after PTCD puncture: first, the drainage tube needs to be observed for the amount and nature of drainage fluid, and the care around the drainage tube should be done to avoid secondary infection that may cause cholangitis. Second, the drainage tube should be careful to avoid folding, resulting in poor drainage and failure to achieve the effect of yellowing reduction. Third, pay attention to not to make the drainage tube fall off and cause bleeding, bile leakage risk, and in serious cases, even cause biliary peritonitis, requiring emergency surgical treatment.