According to the reactions of patients in the cardiac surgical care unit after surgery we summarize the following points for the reference of our patients and friends, hoping that they will be helpful to their recovery after surgery. First, when waking up from anesthesia, you can feel a foreign body in your mouth and airway. This is a tracheal tube, which serves to help you breathe and is very important, and although it feels uncomfortable, you need to put up with it. If your condition is stable and you are breathing well, the tube can be removed soon. You should not be agitated or uncooperative until the tube is removed, such as shaking your head, moving your limbs around, or pulling the tube out of your mouth with your hands, which are very dangerous and can cause the tube to come out and make breathing difficult. These actions are very dangerous and may cause the tracheal tube to dislodge, resulting in breathing difficulties. They can also increase your blood pressure, heart rate, pain, and confrontation with the ventilator, resulting in lack of oxygen and a series of adverse consequences. Second, when the tracheal tube is removed, you will be able to communicate with your healthcare provider. Since you cannot have family members with you in the post-operative recovery room, you should communicate with the medical staff more often and tell them your feelings and requirements so that they can provide better care and treatment for your specific situation. At the same time, the medical staff will also provide you with some guidance, which will help you recover. Thirdly, most of the postoperative patients have dry mouth and thirst, but it takes six hours after the extubation to drink water, so you need to be patient at this time. After six hours, you can drink small amounts of water. The amount of fluid that enters your body in the early stages of heart surgery needs to be controlled. Too much fluid entering the body can cause edema in the lungs and edema in the heart muscle cells, which is not conducive to recovery from surgery and can even lead to serious consequences. Therefore, your health care provider will limit the amount of water you drink. If you understand this, you will understand, overcome the temporary discomfort and actively cooperate with the treatment. Fourth, effective coughing of sputum after surgery can prevent lung infections and pulmonary atelectasis. The method is to take a deep breath, hold it, and cough it out with intra-thoracic pressure, which you can practice before surgery. Such a coughing action is effective, but can cause wound pain, especially when the chest drain is not removed. Regular coughing up of sputum is necessary and essential to reduce pulmonary complications. Fifth, a urinary catheter needs to be kept in place on the day or first day after surgery so that the condition can be judged by observing the amount of urine. You will feel the urge to urinate, which is due to the fact that the urinary catheter is in the urethra giving you the illusion that urine has been drained directly from the bladder. If there are no special circumstances, you will be able to remove the urinary catheter and urinate on your own the next day. Therefore, if you know this before the surgery, you and our medical staff will work better together and you will recover better after the surgery.