Metronidazole should not be used to treat hemorrhoids. Metronidazole is currently widely used in the treatment of anaerobic infections and also in the treatment of intestinal and extraintestinal amebiasis, as well as in the treatment of Trichomoniasis vaginalis, microcysticercosis, cutaneous leishmaniasis, and dracunculiasis nematode infections, and has no clear efficacy for hemorrhoids. Hemorrhoids are not an anaerobic infection, nor are they a parasitic disease. Hemorrhoids are common and multi-infections in the anus. Having hemorrhoids needs to be treated accordingly according to the specific personal situation and symptoms, asymptomatic hemorrhoids do not need to be treated, symptomatic hemorrhoids do not need to be cured, non-surgical treatment is the main treatment, according to the symptoms of hemorrhoids to determine the degree of hemorrhoids and choose the most appropriate treatment. Non-surgical treatment methods are: First, pay attention to diet, avoid alcohol and spicy, stimulating food, increase fibrous food, eat more vegetables, fruits, drink more water, change bad bowel habits, keep stools soft and smooth, avoid sitting and standing for a long time. Second, local medication, including suppositories, creams and lotions. Third, oral medication, generally use the medication for varicose veins. Surgical treatment methods, surgical indications are conservative treatment is ineffective, serious internal hemorrhoid prolapse, larger fibrosing external hemorrhoids, etc.