27 years old can not eat, may be due to indigestion, chronic gastritis, anorexia, drug side effects and other reasons, can follow the doctor’s advice by adjusting the lifestyle and the use of drugs and other treatments. 1. Dyspepsia: When patients have symptoms of dyspepsia, they will often be unable to eat or will be full after eating a little. You can follow the doctor’s instructions to use gastric tablets, domperidone tablets and other drugs for treatment. At the same time, you should also increase exercise to help improve the symptoms. 2. Chronic gastritis: It may be caused by prolonged drinking, irregular diet or eating too much stimulating food, leading to chronic inflammatory changes or atrophic lesions of the gastric mucosa. Typical symptoms will show epigastric pain, epigastric discomfort, loss of appetite and other symptoms. 3. Anorexia: Some patients feel good appetite, but after a few mouthfuls of food, the stomach feels full and uncomfortable and discontinue eating, or see the food do not want to eat. If forced to eat, often induced nausea and vomiting. Patients who do not eat for a long time, gastrointestinal function is weakened, re-intake of food should be gradually increased from soft food, a small number of meals, do not rush to success. Eating too much at one time will cause the patient’s stomach distension and abdominal pain. 4. Drug side effects: It may also be due to abdominal discomfort caused by taking drugs, and the situation of not eating. Such as aminophylline, aspirin and so on. Patients can reduce the amount of drugs under the guidance of the doctor or choose other drugs for alternative treatment. There are many reasons for not being able to eat, if the patient appears to have long-term symptoms of not being able to eat, should go to the hospital in time, to clarify the cause of the disease, for treatment.