If symptoms such as abdominal pain, nausea, and vomiting occur acutely, it may be considered acute gastritis. However, if abdominal pain is accompanied by diarrhea, this condition should be considered gastroenteritis. Thus, acute gastritis generally does not cause diarrhea, whereas acute gastroenteritis can cause symptoms beyond those of the stomach, including diarrhea. Therefore, the difference between acute gastroenteritis and acute gastritis lies in the intestinal issues of the digestive tract. For the treatment of acute gastritis, medications for gastritis can be used to alleviate symptoms. Both are diseases of the digestive system, and proper examination and treatment can be sought in the gastroenterology department. (Please use medication under the guidance of a professional physician, do not self-medicate)