Polyethylene glycol dispersions are often used for bowel cleansing prior to having a gastrointestinal endoscopy. I organized a few suggestions, I hope to help you yo! 1, off the diet: the first three days do not eat fruits containing seeds, such as watermelon, melon, sunflower seeds, etc.; the day before a light diet, fasting after dinner; check the day of the morning and noon meals do not eat, in addition to taking medication to drink water, the rest do not drink water. 2, serving time: to do gastrointestinal endoscopy at 3:00 p.m., for example, 8:00 a.m. – 10:00 a.m. fasting oral polyethylene glycol, take a box of A, B, two doses of a total of 12 packets, with the same dissolved in 750 ml of lukewarm water into a solution, half an hour to drink, drink four boxes of consecutively. 3.Promote defecation: In the process of taking medicine, walk back and forth, gently push and rub the umbilicus in clockwise direction to promote defecation. 4, warm tips: during the medication, to ensure easy access to the toilet, can not drive a vehicle, need to be accompanied by an adult. 5.Other medication: when the intestinal tract is clean, other oral medications taken 1 hour before taking may be flushed away from the gastrointestinal tract and not be absorbed, rationalize the time of taking other medications. 6, such as doing painless: 24 hours after the examination shall not drive motor vehicles, mechanical operations and work at height; postoperative should pay attention to rest, 6 hours after eating, can eat easy to digest, do not eat greasy food. Master these six, smooth to do digestive endoscopy.