Laboratory tests that can be done for the intestines include routine blood and fecal tests, and other tests such as abdominal CT, small bowel scopes, and colonoscopes may be done as needed for the condition. Laboratory tests that can be done for bowel-related diseases include fecal routine and blood routine. Fecal routine can determine whether there is intestinal inflammation and gastrointestinal bleeding through the occult blood test, whether there are elevated white blood cells and positive red blood cells, etc. Blood routine can also assist in determining whether there is intestinal infectious disease and whether there is anemia caused by intestinal bleeding. Imaging examinations such as CT scanning and enhancement, MRI can also assist in determining whether there are localized foci and occupying lesions in the intestinal tract. Endoscopy, such as colonoscopy, small enteroscopy, capsule endoscopy, etc., can be accessed through the digestive tube to observe whether there are focal lesions inside the intestines, so as to detect lesions more intuitively and can be done under the microscope for therapeutic treatment. There are also interventional and imaging tests for intestinal examination. If you have digestive discomfort, it is recommended that you visit the gastroenterology department, and the doctor will prescribe relevant auxiliary tests according to the symptoms, so as to assist in the judgment.