Acute gastroenteritis often manifests as symptoms such as vomiting, abdominal pain, and diarrhea, sometimes accompanied by fever, dizziness, fatigue, etc., often caused by factors such as exposure to cold or improper diet. These include what we refer to as viral enteritis and bacterial enteritis. In most cases, symptoms gradually alleviate after symptomatic treatment, and some may improve without treatment. However, a few patients, such as those with uncontrollable vomiting and diarrhea, coupled with an inability to eat, may experience worsening dizziness, significant fatigue, dry mouth, poor skin elasticity, and reduced urine output. These symptoms indicate the development of hypovolemic shock, which requires attention.