The time of drainage tube removal varies from person to person, depending on the surgery. Intraoperative drains can generally be removed 3 days after surgery, and patients with higher drainage need to extend the removal time; fluid, blood, and gas drainage need to be removed after the drainage is clean. Drainage tubes are placed after surgery, generally to prevent traumatic exudation or postoperative complications in the abdominal cavity; drainage tubes can also be placed in the treatment of lesions with fluid, blood, and gas accumulation. The timing of drainage tube removal differs in the two cases. Drainage tubes placed intraoperatively are usually removed after 3 days, or if there is a large amount of drainage or complications such as fistula, the time of removal is related to the subsequent treatment. For drains with fluid, blood, or gas accumulation at the lesion, they should be removed after drainage is complete. Care should be taken after the drainage tube is placed, otherwise it may cause infection at the drainage site and prolong the patient’s recovery time.