A deadline surgery is a surgery that needs to be completed within a deadline. The timing of the surgery can be chosen, but it should not be delayed for too long. Usually malignant tumor surgery requires a deadline because there are more aspects involved in the surgery and it is not immediate. Some surgical procedures cannot be delayed for too long or the results of treatment may be compromised or the best time for surgery may be lost. Some surgeries need to consider the risks brought by the post-operative period as well as the cost of the surgery. Both patients and families need to think for a period of time before deciding whether they can undergo surgical treatment. For malignant tumor surgery, it is important to complete the related examination for further evaluation before surgery to ensure the safety of the surgery and only then can timely treatment be performed. Overall, most of the deadline surgeries are malignant tumor surgeries.