The causes of hunger, but no appetite and nausea may be pregnancy, gastroenteritis, duodenal ulcer, indigestion, spleen and stomach disorders, gastrointestinal dysfunction, etc. If the symptoms are persistent and serious, it is recommended to seek medical treatment for the cause: 1. Pregnancy: If a woman has a history of menopause, she should pay attention to whether it is an early pregnancy reaction, and can use early pregnancy test paper or go to the hospital for a blood HCG test to confirm the diagnosis; 2. Gastroenteritis: usually caused by infection with viruses, bacteria, parasites, such as eating certain foods, drinking contaminated water, unclean utensils, not washing hands before eating, etc., can be manifested as abdominal pain, nausea, vomiting, hunger and other symptoms. Treatment of gastroenteritis should include fasting, correction of water-electrolyte disturbances, usually bed rest, and drinking sufficient water, such as oral rehydration solution. If vomiting and diarrhea last for a long time or there is serious dehydration, intravenous rehydration can be carried out, and additional antiemetic and antidiarrheal drugs, such as metoclopramide, montelukast, etc.; 3. Duodenal ulcer: closely related to abnormal gastric acid secretion, Helicobacter pylori infection, long-term use of non-steroidal anti-inflammatory drugs, irregular life and diet, smoking, alcohol consumption, spiritual and psychological factors, etc., can be manifested as a sense of hunger, but no appetite and Nausea, etc. Clinically, there are mainly drug therapy and surgical treatment, commonly used therapeutic drugs are omeprazole, pantoprazole, lansoprazole, rabeprazole, etc. Surgical treatment is mainly used to treat complications such as perforation, bleeding, obstruction, etc.; 4. Indigestion: When indigestion occurs, the digestive function of the digestive tract for food is damaged, and part of the food is incompletely digested and cannot be absorbed and utilized by the body, which in turn causes irritation to the intestinal wall. Resulting in the intestinal wall to discharge the poorly digested contents, the body appears hungry but no appetite or even nausea. For treatment, we should pay attention to diet, avoid overeating, and use drugs such as stomachic tablets or lactobacillus tablets under the guidance of a doctor. In addition, attention should be paid to abdominal warmth, avoid cold, keep a happy mood, conducive to the recovery of the disease; 5, spleen and stomach disorders: abnormal spleen and stomach function can appear to have a sense of hunger, but no appetite and nausea, treatment should pay attention to the formation of a good diet and lifestyle habits, keep a relaxed mood, avoid emotional depression, if necessary, under the guidance of doctors can take probiotics tablets or Mosapride tablets; 6, gastrointestinal disorders. Intestinal peristalsis is too fast to stimulate the intestinal mucosa and lead to a sense of hunger, but no appetite and nausea. Such patients should pay attention to diet, avoid raw, cold, hard, spicy, stimulating, greasy food, regular life and rest, eat more fresh vegetables, fruits, pay attention to abdominal warmth, but also through moxibustion, abdominal massage, moderate exercise, to relieve such symptoms, but also under the guidance of doctors to use aloe vera capsules, probiotics, etc. for treatment.