It depends on the type of operation. For example, some patients with minor surgery can eat some sea cucumbers within 1-2 days after surgery. Patients undergoing major surgery or gastrointestinal surgery need to fast for a period of time after surgery, and then start eating after anal defecation and exhaust, and gradually transition from liquid diet to semi-liquid diet, and then return to normal diet. Patients can eat some sea cucumbers properly after returning to normal diet, which usually takes 5-7 days.