Preoperative nursing 1. Psychological nursing: introduce the process of interventional microwave ablation therapy and the therapeutic effect to the patient. Stabilize the patient’s emotion, encourage the patient to tell the reason of fear and worry, establish mutual trust between doctor and patient, eliminate anxiety and fear, and cooperate with the treatment with a positive attitude. 2, preoperative fasting for 6 hours, empty urine and stool, wear loose clothing, easy to interventional ultrasound treatment and reduce the postoperative urination out of bed activities. 3.Preoperative breathing with the patient to do the “three no” training, breath holding training, not sneezing, not coughing, not large mouth breathing, can not arbitrarily change position, move the body. 4, bed urination training for patients, patiently explain the importance of urination training, to prevent postoperative not accustomed to bed urination caused by urinary retention. Intraoperative nursing 1, in the left limb left 16G indwelling needle, the establishment of intravenous access. 2, Follow the doctor’s prescription of intramuscular injection of dulcolax to ease the patient’s mood and relax muscle tension. 3.During the operation, talk with the patient at the right time, inform the operation process, emphasize the principle of “three no’s”, cooperate with the doctor to do a good job of breath holding, smooth breathing and other actions to encourage the patient, so that the operation can be completed successfully. Postoperative care 1, general care After returning to the ward, the patient lay down for 6h, and was given cardiac monitoring for 24h, closely observing the changes of vital signs and abdominal signs. At the same time, pay attention to whether the patient has chest tightness, shortness of breath, abdominal puncture point dressing with or without blood seepage, etc., and tell the patient not to do strenuous exercise for 3 days, fasting for 6 or 12 hours, with appropriate rehydration fluids, a small amount of light easily digestible diet, and then gradually return to a normal diet if there is no discomfort after eating. 2, puncture site care Pay attention to the puncture site with or without oozing fluid, oozing blood, and keep the puncture point clean and dry, two days after the operation can not take a bath, feasible to wipe the body, to prevent water contamination of the wound, such as redness, swelling or pus oozing out of the puncture site, the wound infection, should be given according to the doctor’s instructions for anti-inflammatory treatment, medication and other treatments, and the strict implementation of aseptic operation. 3.Pain care Due to microwave ablation therapy, the tumor tissue undergoes coagulation and necrosis to achieve the therapeutic purpose, and at the same time, its thermal effect also leads to pain caused by burns and stimulation of hepatic pericardium. It is mainly manifested as distending pain, and the degree and duration of pain are related to the size of the tumor, the depth of the location and the patient’s tolerance level. The pain is more obvious in two days after surgery and lasts for 3 to 5 days. Nurses should closely observe the location, scope, intensity, duration of pain and whether it is combined with signs of peritonitis, and explain to the patients the cause of pain and the time of relief. For those with severe pain, pain relievers, such as dulcolax and morphine, can be given appropriately when complications such as intra-abdominal hemorrhage are ruled out. 4.Close observation of body temperature change: the first day after ablation treatment, the body temperature fluctuates from 37.5 to 38.5℃, and the highest temperature can reach 39℃, and generally it will turn to normal in 2-7d. There are many factors for the patient’s elevated body temperature, and the early fever is caused by the necrosis of tumor tissues and absorbed by the organism after treatment, and the temperature will be lowered to normal in 1 week after giving the patients physical cooling and medication for symptomatic treatment. For those who have chills before high fever, attention should be paid to whether there is infection. If the fever is more than 1 week, pay attention to the possibility of secondary infection. Patients with fever should change sweaty clothes in time, pay attention to keep warm, and do good skin care and basic care.