For a long time, appendicitis has been considered a minor problem and appendectomy a minor surgery. However, with the accumulation of “appendicitis cases” and the increasing number of misdiagnosis cases, clinicians have realized that the so-called “appendicitis” is actually a very complex disease. The reason for this complexity is that: 1. The misdiagnosis rate is high. It is very easy to misdiagnose other diseases as appendicitis; 2. There are many atypical appendicitis, and it is difficult to determine the treatment plan and timing of surgery for atypical appendicitis; 3. Difficult, also prone to incisional complications. In recent years, we have applied laparoscopic techniques to the treatment of appendicitis and achieved better results. Among all the dozens of cases of “appendicitis” treated by laparoscopy, there were 6 cases with preoperative diagnosis of “atypical appendicitis”, which were: 1 case of appendicitis, 1 case of diverticulitis with perforation of ascending colon, 1 case of pelvic pus in acute pelvic inflammatory disease, 1 case of intestinal adhesion in right lower abdomen One case of endometriosis with abdominal hemorrhage and one case of duodenal ulcer perforation. All patients were operated under laparoscopy. Postoperative recovery was smooth in all cases except for 2 cases of appendicitis with residual abdominal infection (both were early surgery cases), and all patients were discharged from the hospital 3-5 days after surgery. Compared with traditional open surgery, laparoscopic surgery has the following advantages: 1. For misdiagnosed cases, it facilitates clear intraoperative diagnosis. Traditional open surgery has a small incision and can only explore a very small area of the right lower abdomen; if a larger area needs to be explored, it is often necessary to extend the incision; laparoscopy can easily explore the whole abdominal cavity under minimally invasive conditions, and once the appendix is found to be free of inflammation intraoperatively, the whole abdominal organs can be further explored, thus helping to find the lesion and facilitating intraoperative confirmation of the diagnosis. 2.For those who have “atypical appendicitis” and have difficulty in deciding whether to operate urgently or may need to operate with an exploratory incision, laparoscopic treatment can be performed under minimally invasive conditions for exploration and final confirmation of the diagnosis; at the same time, the cost of trauma for those with negative exploration is extremely low. 3, incisional infection is almost zero. During open surgery, the abdominal wall incision is easily contaminated by bacteria, so the incision infection rate of open surgery is high, up to 30% (Huang Jiajie Surgical Science); during laparoscopic surgery, the possibility of bacterial contamination of the abdominal wall incision is very small, and the incision infection rate is almost zero. 4, obesity has minimal effect on laparoscopic surgery. Obese patients with poor exposure and poor surgical field of view during open surgery, the incision is more likely to be contaminated and infected; laparoscopic surgery is almost not restricted by obesity, easy to operate, and the incision is not easy to be infected. 5.For patients with purulent or perforated appendicitis, laparoscopic surgery can provide more thorough abdominal flushing and more convenient placement of drainage tubes. 6, for preoperative diagnosis of appendicitis and non-obese people, open surgery incision is only 4-5 cm, trauma is also very small, the cost is relatively low, then open surgery is also a good choice. However, laparoscopic surgery also has obvious advantages such as less postoperative pain, faster recovery, shorter hospital stay and less abdominal scars. In conclusion, laparoscopic treatment of appendicitis has many advantages that cannot be matched by traditional open surgery, and should become the first choice of surgery for appendicitis, and may even become the gold standard for the treatment of appendicitis in the future.