If the symptoms of acute gastroenteritis are not relieved or continue to worsen after treatment with medication, gastroscopy may be considered; if the condition requires it, gastroscopy may be performed immediately. Acute gastroenteritis may be caused by infections (e.g., bacteria, viruses, parasites, etc.) or non-infectious factors (e.g., overheating, alcohol consumption, seafood allergy, etc.) manifesting as diarrhea, abdominal pain, nausea, vomiting, and other symptoms of a disease. If the patient’s condition improves with medication and the symptoms gradually decrease, gastroscopy is usually not necessary; if the symptoms are not relieved or continue to worsen after treatment with medication, gastroscopy may be considered. Patients with acute gastroenteritis are advised to consult a doctor as soon as possible and follow the doctor’s instructions for standardized treatment, so as to avoid delaying the condition.