Stomach pain with hunger may be caused by psychogenic factors, gastritis, gastric ulcer and so on. 1. Psychological factors: when life is too stressful, the serotonin in the human body will be reduced, affecting the gastrointestinal function, there may be a stomachache with a feeling of hunger. 2. Gastritis: it is the inflammatory response of the gastric mucosa to various stimuli in the stomach, mainly manifested as epigastric pain, nausea, loss of appetite, hunger, gastritis patients will have excessive secretion of gastric acid, which causes stomach pain with hunger. 3. Gastric ulcer: clinical symptoms include epigastric pain when hungry, nausea, stomach discomfort, etc. When the gastric mucosa is digested and eroded by gastric acid in gastric juice, so there will be stomach pain with hunger. If you have stomach pain with hunger, you need to go to the hospital to clarify the cause, and the professional doctor according to the specific condition, to formulate diagnosis and treatment plan, so as not to delay the condition.