Whether or not a patient can eat leeks after surgery depends on the patient’s surgical site and whether or not the patient’s gastrointestinal function recovers after surgery. If a patient is operated on for multiple lipomas in the abdominal wall, the patient’s gastrointestinal function is not significantly affected after surgery, and in this case a small amount of leeks can be eaten without affecting the patient’s wound healing. If a patient undergoes laparoscopic surgery for acute suppurative appendicitis, the patient’s abdominal cavity is still full of exudate and pus after surgery, and the patient has not fully recovered from exhaustion and defecation, eating leeks in this case may increase the burden on the patient’s gastrointestinal function, resulting in abdominal distension and abdominal pain, which is not conducive to faster recovery. It is safer and will not cause serious complications.