Minimally invasive surgery for appendicitis, no special treatment is needed when the effusion is small, and a drainage tube can be placed to drain the effusion when the effusion is large, depending on the amount of effusion. 1. Less fluid accumulation: there may be abdominal fluid accumulation, if a small amount of fluid accumulation, the fluid can be self-absorbed generally do not need treatment, but need to be regularly rechecked to observe the changes of fluid accumulation. 2. More fluid: the fluid generally can not be self-absorbed, the need to drain the fluid, can be puncture aspiration, sometimes can be placed in the drainage tube, can continue to drain the fluid, can be eliminated, pay attention to the drainage bag should be lower than the wound plane, to avoid the drainage fluid reflux, observation of the nature of the drainage fluid, color, amount, found abnormalities reported in a timely manner. It is recommended that patients go to the hospital in a timely manner, under the guidance of the doctor, according to the relevant examination targeted treatment, to prevent delays in the condition.