Bowel sounds after drinking Copolyethylene Glycol Electrolyte Dispersant is a normal phenomenon, and the symptoms usually disappear after stopping the medication. Polyethylene Glycol Electrolyte Compound is used to treat functional constipation, preoperative bowel cleansing preparations, and bowel cleansing preparations prior to colonoscopy and other tests. Adverse reactions to Copolyethylene Glycol Electrolyte Bulk include abdominal pain, diarrhea, bloating, and nausea. It is contraindicated in patients with GI obstruction, bleeding, perforation, toxic enteritis, gastric retention, toxic megacolon, and Crohn’s disease. In addition, patients should pay attention to a light diet a few days before the test, avoiding some coloring and food with high crude fiber content. It is recommended to use Compound Polyethylene Glycol Electrolyte Bulk under the guidance of a doctor, and not blindly self-medication to avoid adverse effects.