Day surgery originated in developed countries in Europe and the United States, and refers to the selection of patients with certain indications and the arrangement of hospitalization, surgery, brief post-surgery observation, recovery and discharge within one to two working days, without the patient staying overnight in the hospital. Several “day surgery” centers have been established in foreign countries, which is a safe and reliable surgical model. Based on the mature technology and strong strength of our minimally invasive center, we are in line with foreign countries and work closely with related departments to carry out laparoscopic cholecystectomy (LC) day surgery, which completes the process of hospitalization, surgery and post-operative recovery within one to two working days, significantly shortening the hospitalization and pre-operative waiting time, which is safer and more reliable than conventional laparoscopic surgery, with less pain, faster recovery, early normalization and return to work. Compared with conventional laparoscopic surgery, it is more safe and reliable, less painful, quicker recovery, early normalization of life and return to work, and lower medical costs. Pre-operative instructions for “daytime LC surgery” 1. Patients with hypertension, diabetes and other combined diseases should be adjusted before admission; aspirin users should stop taking aspirin for one week before surgery; 2. Pre-operative outpatient checkups: blood, urine and stool routine, biochemical complete set (including electrolytes), coagulation function, eight items before transfusion, ABO blood group, electrocardiogram, chest X-ray, liver and biliary ultrasound, etc.; 3. 3.Sign the surgery consent form with the ward physician before surgery; 4.Fast food and drink after 10 pm before surgery to ensure good sleep; 5.Fast stomach in the morning on the day of surgery, necessary drugs for hypertension can be taken with a sip of water; go to the ward before seven o’clock for pre-operative preparation; “day surgery” post-operative precautions 1.After the infusion of fluids, the physician in charge should check the condition before discharge. 2, no postoperative discomfort, anesthesia after waking up, can gradually eat and drink, someone to support when out of bed; 3, postoperative mild vomiting, shoulder and back pain, subxiphoid incision pain, etc. is normal, no need to be nervous; 4, postoperative serious abdominal pain, abdominal distension, skin sclera yellow stain, please contact the doctor in charge; 5, after discharge routine oral antibiotics or outpatient intravenous application 6.Keep the incision hygienically dry, avoid water for a week, and change the medication in the outpatient clinic if necessary; 7.Visit the hospital promptly if there is any situation, and follow up with the specialist clinic after a week.