The cause of excessive gastric acid secretion may be due to dietary influences, or gastritis, gastric ulcer and other digestive disorders. 1. Dietary influences: If you eat too much, or eat too much cold and greasy food, it will cause stimulation to the stomach, leading to increased secretion of stomach acid. 2. Gastritis: Gastritis can be caused by long-term alcohol or Helicobacter pylori infection, or it can be caused by excessive mental stress, which can lead to an increase in gastric acid secretion. Typical symptoms are usually pain in the middle and upper abdomen or abdominal distension, which may also be accompanied by excessive gastric acid secretion. 3. Gastric ulcers: Gastric ulcers can be caused by Helicobacter pylori infection, or long-term use of non-steroidal anti-inflammatory drugs can also lead to ulcerative lesions in the stomach, which can cause an increase in gastric acid secretion. Increased gastric acid secretion is caused by a variety of factors, it is recommended that the patient go to the gastroenterology department of the hospital in a timely manner, and cooperate with the doctor’s treatment.