Slight stomach pain may be caused by physiological factors, gastrointestinal diseases and medication factors. 1. Physiological factors: If the patient usually has a poor diet, overeating, spicy and stimulating diet, often stay up late, work stress, life stress, alcoholism, etc., it may lead to chronic inflammation of the gastrointestinal tract and stomach pain. 2. Gastrointestinal diseases: such as Helicobacter pylori infection, acute and chronic gastritis, gastroduodenal ulcer, gastroesophageal reflux disease, gastric tumors and other diseases may also lead to the above situation, but also accompanied by nausea, vomiting, abdominal pain and other adverse reactions. 3. Drug factors: such as antipyretic and analgesic, antimicrobial, antitumor drugs can affect the normal secretion of the gastric mucosal glands, damage to the gastric mucosa, thus causing pain in the stomach. Slight pain in the stomach may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.