After the operation, firstly, attention should be paid to drainage to prevent dislodgment from the chest cavity, and the shape and amount of drainage fluid should be observed at the same time. Secondly, attention should be paid to diet. In the initial period, if the doctor allows you to start eating, you can eat well-digested fluids, such as thin porridge, rice soup, fish soup, meat soup, etc. After eating fluids, if there is no special discomfort, you can gradually transition to a normal diet. Overall, you need to consume more high quality protein with low fat and low cholesterol content, such as lean meat, beef, lamb, fish, shrimp, etc., more vitamin and fiber-rich foods, such as fruits, green vegetables, etc., and more B- and C-vitamin-rich foods, such as kiwi fruit, apples, bananas, etc. You should not eat too much spicy food. But don’t eat too spicy food, can’t drink alcoholic beverages, and can’t do too strenuous exercise in the short term.