Panic on the second day after surgery may be caused by nervousness, postoperative blood loss, hypoglycemia, arrhythmia, infection and other factors. 1. Mental tension: some patients may be more fearful of surgery, before and after surgery due to excessive worry makes the spirit more nervous, excessive anxiety, may appear in the postoperative palpitations and panic attacks, generally no other abnormal symptoms, at this time there is no need for special treatment. 2. Blood loss: surgery will have a certain degree of blood loss, if the amount of blood is more than a certain degree, the patient’s heart will compensate for the accelerated heart rate, the purpose is to increase the heart rate to alleviate the other tissues and organs of the blood supply is not complete, panic after surgery. 3. Hypoglycemia: Fasting is usually required before surgery, and if the surgery lasts for a longer period of time, the patient may suffer from hypoglycemia, which may lead to the symptoms of panic. 4. Arrhythmia: this is mostly seen in patients with basic heart disease in the state of surgical stress, easily induced heart disease, thus showing the phenomenon of arrhythmia, which can also cause panic. 5. Infection: Surgery is mostly aseptic, but because of the open incision, there is still a risk of infection, and some patients may have some degree of infection after surgery. Infection can cause patients to develop fever, leading to rapid heartbeat and panic attacks. Panic after surgery needs to be informed to the doctor in time and treated under the doctor’s guidance.