Gastroenteritis is not cured for half a year may be caused by unimproved living habits, not treating the cause of the disease, misdiagnosis and other reasons. 1. Lifestyle habits are not improved: staying up late during the treatment period, irregular diet, eating spicy and stimulating food, smoking, alcoholism, etc. will affect the treatment effect, resulting in gastroenteritis half a year is not cured. 2. Not for the cause of treatment: such as Crohn’s disease can also lead to abdominal pain, diarrhea and other symptoms of gastroenteritis, Crohn’s disease as a common gastroenteritis treatment, the therapeutic effect is not good. Gastroenteritis patients infected by Helicobacter pylori are not treated with antimicrobial drugs such as amoxicillin and metronidazole, which also cause gastroenteritis to remain untreated for half a year. 3. Misdiagnosis: Gastroenteritis is diagnosed incorrectly, which may be gastric cancer or intestinal cancer caused by stomach discomfort, abdominal pain, diarrhea and other symptoms similar to gastroenteritis. If gastroenteritis has not been cured for half a year, you should go to the hospital in time, actively search for the cause and make a suitable treatment plan with the help of your doctor.