The appendix has a certain role for the human body, it can provide beneficial bacteria for the intestine, and also has certain immune functions, so for the normal appendix, doctors do not recommend removal. 1, provide beneficial bacteria: the human digestive tract has a large number of bacteria, most bacteria belong to the beneficial bacteria, which is conducive to digestion, when the beneficial bacteria in the intestine are removed for various reasons, the beneficial bacteria in the appendix will restore the intestinal flora and regulate the bacteria in the intestine 2, immune function: the appendix is rich in lymphatic tissue, which can secrete more lymphocytes, transfer to other parts of the body, promote the generation of antibodies, eliminate harmful bacteria in the body, and protect beneficial bacteria, people with low immunity should be more cautious to remove the appendix. However, the immune function of the appendix will gradually weaken as normal people get older. In addition, if the appendix is removed, it may increase the chances of colon cancer. With medical developments, it is also possible that more roles for the appendix will be discovered, and removal of the appendix is not recommended if not necessary. However, if appendicitis occurs and complications arise, such as abdominal abscesses and portal phlebitis, laparoscopic appendectomy is required if necessary. If the adhesions between the appendix and the intestinal canal, abdominal wall, etc. are too severe to achieve the desired result through treatment, laparoscopic appendectomy is necessary to separate the adherent tissues.