Patients with gastroenteritis mainly exhibit certain clinical manifestations, which primarily include vomiting. Many patients experience vomiting due to bacterial infections in the stomach and invasion by viral diseases, which cause the stomach contents to be expelled and the stomach muscles to contract. Secondly, there are symptoms of diarrhea. Most gastrointestinal irritations affect the absorption in the gastrointestinal tract, leading to increased bowel movements, thus resulting in frequent loose stools. Additionally, there are symptoms of abdominal pain. Abdominal pain mainly results from increased gastrointestinal movements beyond normal speeds, causing the patient to feel pain. Inflammation of the mucosa within the intestines can also cause painful swelling.