Metronidazole cannot be used to treat hemorrhoids. Metronidazole is currently widely used for the treatment of anaerobic infections and also for the treatment of intestinal and extraintestinal amoebiasis, such as amoebic liver abscess and pleural amoebiasis, as well as for the treatment of trichomoniasis, microcysticercosis and cutaneous leishmaniasis, dracunculiasis nematode infections, etc. There is no clear efficacy for hemorrhoids. Hemorrhoids are not an anaerobic infection or a parasitic disease. Hemorrhoids are a common, multi-infarct disease of the anus and need to be treated accordingly to the specific individual situation and symptoms. Asymptomatic hemorrhoids do not require treatment, symptomatic hemorrhoids do not require radical treatment, non-surgical treatment is the main, according to the symptoms of hemorrhoids to determine the degree of hemorrhoids, choose the most appropriate treatment method. Non-surgical treatment methods include: first, pay attention to diet, avoid alcohol and spicy stimulating food, increase fibrous food, eat more vegetables and fruits, drink more water, keep stools soft and smooth, avoid sitting and standing for a long time; second, local medication treatment; third, oral medication treatment. There are also surgical treatment methods, and the indications for surgery are conservative treatment is ineffective, serious internal hemorrhoid prolapse, larger fibrotic external hemorrhoids, etc.