Patients with pyloric sphincter dysfunction mainly present with symptoms such as acid reflux, abdominal pain, vomiting, and weight loss. The pyloric sphincter is a circular muscle in the pyloric region that helps to delay the emptying of stomach contents as well as prevent the backflow of intestinal contents into the stomach. When the pyloric sphincter is dysfunctional, it can cause bile from the intestinal contents to flow back into the stomach, resulting in symptoms such as acid reflux, abdominal pain, bloating, vomiting, and weight loss. Pyloric sphincter dysfunction is common in chronic gastritis, gastroduodenitis, pyloric stenosis, etc. It is recommended that the patient go to the hospital for relevant examinations in a timely manner to identify the cause under the guidance of the doctor and carry out appropriate treatment. It is recommended to pay attention to a light diet, do not eat too hard, spicy, cold food, and at the same time to quit drinking, so as not to stimulate the gastrointestinal mucosa, so that the symptoms are aggravated.