Residual gastritis anastomosis can be cured, usually with symptomatic treatment. The anastomosis of residual gastritis is mostly due to the normal anatomical structure of the stomach changed after surgery to affect the blood flow of the mucosa, resulting in easy inflammation, generally do not need surgical treatment, mainly symptomatic treatment, if there are symptoms of nausea, vomiting, and abdominal pain, can be improved by oral medication, such as omeprazole and montelukast to inhibit the secretion of gastric acid. Patients need to undergo regular gastroenteroscopy to closely observe the anastomosis for tumorigenic changes. At the same time, the patient should eat a regular diet of easily digestible foods and avoid irritating foods. The residual gastric anastomosis has a certain degree of danger, the patient needs to actively accept the treatment, to avoid affecting the health of the body.