Acute gastroenteritis mostly occurs in summer and autumn, due to unhygienic eating habits and consumption of spoiled food. Additionally, a weak immune system or excessive fatigue can gradually lead to acute gastroenteritis. Therefore, it is important to prevent acute gastroenteritis by adopting a healthy lifestyle. This includes having meals regularly and in proper amounts, avoiding spoiled food, drinking plenty of water (preferably boiled water), ensuring the water is thoroughly boiled, maintaining a reasonable work-rest schedule, avoiding excessive fatigue, and eating less greasy and spicy food.