Metronidazole cannot be used to treat constipation. Metronidazole is an antibiotic, in the case of bacterial infection, according to the doctor’s instructions to use metronidazole for treatment. After the symptoms of constipation, you can use probiotics to regulate the intestinal flora under the guidance of a doctor, and if the constipation is more serious, you can use Keflex, lactulose and other drugs under the guidance of a doctor to make the bowel movement. Need to determine according to the patient’s condition of the drug time as well as the dose of drugs, if there is a serious adverse reaction, need to go to the hospital immediately. During the constipation period can drink more warm water, usually can eat more food rich in dietary fiber, daily life, pay attention to do not sit or stand for a long time, you can go out more walking.