The middle and posterior stools are collected as specimens and placed in culture bottles to be sent for examination by culture experiments. Under normal circumstances, the stool contains a certain number of bacteria, mainly Escherichia coli, which belongs to the normal flora, can maintain the digestive and absorptive functions of the intestines, and can resist foreign bacteria. If you suspect that you have an intestinal bacterial infection, you can have a stool bacterial culture test to find out what kind of drugs the pathogenic bacteria are sensitive to, so that you can use the drugs accurately. By using a sterile bamboo stick, the central part of the stool with mucus, pus and blood is placed in a culture bottle and sent to the hospital laboratory for stool culture. By observing the stool, whether there are mainly Escherichia coli, otherwise it can be considered to belong to the dysbiosis, the human body should find out the causative bacteria as soon as possible, through the use of antibiotics to regulate the flora in the intestinal tract.