For small kidney cancer, the traditional method is to remove part of the kidney through open surgery. This is not only traumatic, but also damaging to kidney function. Recently, Gaozhou People’s Hospital has carried out a new technique that not only preserves the kidney, but also removes small kidney cancer completely through laparoscopic minimally invasive technique without open surgery. According to the search, this new surgical procedure is difficult and has not been reported in the western part of Guangdong. Uncle Wu, who lives in Huazhou City, was the first patient to undergo this surgery. He was so radiant after the operation that he could not tell he had undergone surgery. He joked that he really had diabetes to thank for his ability to undergo this advanced minimally invasive surgery to save his kidney. He didn’t even know he had small kidney cancer beforehand, but found it out during his diabetes checkup before he was admitted to the second urology department of the hospital. Feng Zhenhua, director of the department, made a detailed examination for Uncle Wu and found that the occupancy of the right kidney was about 3.7×3.1 cm, which was diagnosed as small kidney cancer of the right kidney. According to the conventional surgery, an incision of about 20 cm in length had to be made in the abdomen and a partial nephrectomy was performed. In order to reduce the trauma and preserve the kidney function, Director Feng Zhenhua decided to carry out a new laparoscopic surgery, which can preserve the kidney and remove the kidney tumor completely without an incision. In order to ensure complete removal of the tumor and reduce postoperative recurrence, the surgery must remove part of the kidney tissue and then suture the kidney, which is more difficult. If less is cut, the complete removal of the tumor cannot be guaranteed, and if more is cut, the remaining kidney is difficult to be sutured, which may lead to urinary leakage or bleeding. What is more difficult is that the renal artery needs to be blocked to control the bleeding, so that the kidney will not get blood supply, and the longest time that the kidney can tolerate thermal ischemia is 30 minutes, beyond which the kidney function will be damaged. After full preparation, Director Feng Zhenhua personally performed the posterior laparoscopic partial right nephrectomy for the patient. During the operation, the renal artery was blocked with small vascular clips, and the right kidney tumor was completely removed at a distance of about 0.5 cm from the edge of the tumor, and then the kidney was sutured, and the whole process took less than half an hour. After the operation, the tumor pathology was renal clear cell carcinoma with intact envelope, and the patient could get out of bed the next day and was discharged from the hospital a few days ago. According to Feng Zhenhua, partial nephrectomy for kidney cancer is commonly used to treat small kidney cancer with tumor diameter less than or equal to 4cm. This operation can achieve the same efficacy as radical nephrectomy, and at the same time reduce the damage of kidney function and postoperative complications, which can only be done through open surgery in the past. The hospital is the first to carry out laparoscopic partial nephrectomy for small kidney cancer in western Guangdong, which is another breakthrough after the successful implementation of laparoscopic kidney cancer and radical nephrectomy for renal pelvis cancer.