Stool examination is a routine examination of feces. Generally, there is no need to restrict diet, but it is necessary to prohibit taking antidiarrheal drugs or laxatives, so as not to affect the test results. The main purpose of this examination is to know whether there are pathogenic bacteria in the digestive tract. General examination includes checking whether there are red blood cells, white blood cells and bacteria in stool, occult blood test, egg test and so on. , according to the test results to determine whether there are related diseases.