There are many ways to examine the small intestine, one of which is called an enema, where barium is pumped through the anus after cleaning the bowel and examined under x-rays. This is a relatively inexpensive test that costs about$100 and can usually be done at a secondary hospital. There is another type of examination that is very detailed compared to barium enema, which is gastroenteroscopy, which can be given after cleansing the intestinal tract, and can detect changes in the intestinal mucosa, as well as take pathological biopsies of ulcers or mucosal elevations. Compared to barium enema, this type of examination is more detailed, so it is also more expensive, can be used in the second-class hospitals, the examination cost ranges from 400-800 yuan.