There are many etiologies to consider for this condition: 1. chronic gastritis and peptic ulcer, gastric ulcer and chronic gastritis will be accompanied by paroxysmal abdominal pain, some of them will show hunger pain, and after eating, there will be a loss of appetite because the lesion makes the digestive function decrease. 2. gallbladder infection, hepatitis and other diseases. 3. in addition to the above reasons, hunger but no Appetite may be related to pregnancy after female intercourse, because early pregnancy is prone to the performance that hunger is obvious before eating, but there is no appetite when eating. In short, patients should consider their physical state in many ways, and if necessary, they can go to the hospital for relevant examinations to determine the specific causes of this situation, so that the right medicine can be prescribed to prevent the deterioration of the condition.