Pain in the lower right abdomen after appendectomy requires vigilance against intestinal adhesions, appendiceal stump inflammation and residual infection in the abdominal cavity. 1. Intestinal adhesion: after removing the appendix, there may be infectious inflammation of the surrounding intestinal tissues, and intestinal adhesion often occurs, causing persistent pain in the right lower abdomen. 2. Appendiceal stump inflammation: when removing appendiceal tissues, if there are more residual tissues in the appendiceal root, appendiceal stump inflammation may occur, resulting in pathological changes such as congestion and edema of the local tissues, which may lead to pain in the right lower abdomen. 3. Residual infection in the abdominal cavity: there may be a slight infection in the abdominal cavity when the appendix tissue is removed, and the local infection will gradually spread at a later stage, which will also cause right lower abdominal pain. If there is pain in the right lower abdomen after appendectomy, it is better to consult the doctor in time, carry out abdominal ultrasound and other auxiliary examinations to clarify the specific causes, and follow the doctor’s instructions to be treated.