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No stomach pain, but feeling nauseous and wanting to vomit—what could be the cause?

Sep 07, 2024 Source: Cainiu Health
Dr. Shen Yonghua
Introduction
In general, when there is no stomach pain but nausea and vomiting occur, possible causes include indigestion, pregnancy reaction, reflux esophagitis, bile reflux gastritis, irritable bowel syndrome, and others. If discomfort arises, it is recommended to seek medical attention promptly. Maintaining regular作息 (daily routines), a balanced diet, moderate exercise, and a positive mindset can help prevent and alleviate feelings of nausea and vomiting.

Under normal circumstances, the absence of stomach pain accompanied by nausea or a feeling of vomiting may be caused by indigestion, pregnancy reactions, irritable bowel syndrome (IBS), reflux esophagitis, bile reflux gastritis, and other conditions. If discomfort occurs, it is recommended to seek medical attention promptly. Specific analyses are as follows:

1. Indigestion

Indigestion is usually caused by gastrointestinal motility disorders, insufficient digestive enzymes, or improper diet. It may lead to excessive gastric acid secretion or weakened gastric motility, resulting in delayed digestion and emptying of food, which irritates the gastric mucosa and causes feelings of nausea and vomiting. Dietary adjustments should be made, avoiding oily and spicy foods, and eating small, frequent meals.

2. Pregnancy Reaction

In early pregnancy, significantly elevated levels of estrogen and progesterone may stimulate the gastrointestinal tract, leading to symptoms such as nausea and vomiting. This is a normal physiological phenomenon that generally does not require special treatment. Symptoms can be alleviated by eating small, frequent meals and avoiding greasy or spicy foods.

3. Irritable Bowel Syndrome (IBS)

IBS is typically caused by a combination of abnormal intestinal motility, dysregulation of the nervous system, and intestinal microbiota imbalance. It may lead to gas accumulation and intestinal spasms, along with dysfunctional gastrointestinal motility, causing nausea and vomiting sensations. Patients may also experience abdominal pain, alternating constipation, and diarrhea. Treatment under medical guidance may include medications such as pinaverium bromide tablets, quadruple probiotic bifidobacterium tablets, or loperamide hydrochloride capsules.

4. Reflux Esophagitis

Reflux esophagitis is often caused by gastric acid reflux or dysfunction of the lower esophageal sphincter. The inflammation may irritate the esophageal mucosa, resulting in nausea and vomiting, often accompanied by heartburn and difficulty swallowing. Under medical supervision, medications such as domperidone tablets or omeprazole enteric-coated capsules may be used for treatment.

5. Bile Reflux Gastritis

Bile reflux gastritis is commonly caused by bile reflux damaging the gastric mucosal barrier or dysfunction of the pylorus. This irritation leads to gastric inflammation, potentially causing nausea and vomiting without stomach pain, along with symptoms such as bitter taste in the mouth and belching. Patients may take medications such as hydrotalcite chewable tablets, ursodeoxycholic acid capsules, or mosapride citrate dispersible tablets as directed by a physician.

Maintaining regular作息, balanced diet, moderate exercise, and a positive mindset in daily life can help prevent and relieve nausea and vomiting.

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