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What causes nausea, vomiting, and stomach discomfort?

Sep 13, 2025 Source: Cainiu Health
Dr. Huang Yuhong
Introduction
In general, nausea, vomiting, and stomach discomfort may be caused by improper diet, mental stress, acute gastritis, gastroesophageal reflux disease (GERD), functional dyspepsia, or other factors. It is recommended to seek medical attention promptly, identify the underlying cause, and undergo symptomatic treatment under a doctor's guidance. Daily precautions should include maintaining dietary hygiene, avoiding raw, cold, or spoiled foods, eating meals regularly, and avoiding overeating or binge eating.

　　In general, nausea, vomiting, and stomach discomfort may be caused by improper diet, mental stress, acute gastritis, gastroesophageal reflux disease (GERD), or functional dyspepsia. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under a doctor's guidance. Detailed analysis is as follows:

　　1. Improper diet: Overeating, consuming excessive greasy, spicy, or spoiled foods can increase the burden on the gastrointestinal tract and irritate the gastrointestinal mucosa, causing discomfort. Adjust the diet by choosing bland and easily digestible foods such as porridge and noodles, eating smaller meals more frequently, avoiding overburdening the gastrointestinal system, and drinking plenty of warm water to promote metabolism.

　　2. Mental stress: Prolonged anxiety and high stress levels can affect gastrointestinal motility and digestive juice secretion, leading to gastrointestinal dysfunction and symptoms such as nausea and vomiting. Stress can be relieved through listening to music, exercising, and socializing. Maintaining a regular sleep schedule and avoiding late nights can also help improve gastrointestinal function.

　　3. Acute gastritis: Acute inflammation of the gastric mucosa caused by bacterial or viral infection or medication irritation may manifest as nausea, vomiting, and stomach pain. Patients may follow medical advice to take medications such as omeprazole enteric-coated capsules, hydrotalcite chewable tablets, and domperidone tablets to inhibit gastric acid secretion, protect the gastric mucosa, enhance gastrointestinal motility, and relieve discomfort.

　　4. Gastroesophageal reflux disease: Dysfunction of the lower esophageal sphincter leads to gastric acid reflux and irritation of the esophagus, causing symptoms such as nausea, acid regurgitation, and stomach discomfort. Patients may follow medical advice to take medications such as rabeprazole sodium enteric-coated tablets, mosapride citrate tablets, and sucralfate suspension to reduce gastric acid secretion, promote gastric emptying, protect the mucosa, and alleviate reflux symptoms.

　　5. Functional dyspepsia: Gastrointestinal motility deficiency and visceral hypersensitivity can lead to abnormal digestion, causing postprandial fullness, nausea, and stomach discomfort. Patients may follow medical advice to take medications such as compound digestive enzyme capsules, itopride tablets, and trimebutine maleate tablets to aid digestion, enhance gastrointestinal motility, regulate gastrointestinal function, and improve symptoms.

　　In daily life, attention should be paid to food hygiene, avoiding consumption of raw, cold, or spoiled food. Meals should be taken regularly, avoiding overeating. A positive mindset should be maintained to avoid excessive tension and anxiety. Appropriate exercise can enhance gastrointestinal motility and help maintain gastrointestinal health.

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