Six-year-old children with anal fistula, can be general treatment, surgical treatment and blockage method. 1. General treatment: usually pay attention to the cleanliness of the affected area, change underwear and so on. Pay attention to the regulation of diet, try to keep the bowel movement. 2. Surgical treatment: By cutting or removing the fistula, an open wound is formed to promote its healing. Commonly used surgical methods include fistulotomy, hanging line therapy, anal fistula resection. 3. Plugging method: mainly the use of metronidazole, saline flushing fistula, from the external injection of biological protein to plug. Mainly applicable to simple anal fistula. This method is not traumatic and painless, but its cure rate is low. It is recommended to consult a doctor in time, according to their own condition to choose the appropriate treatment program. The above drugs should be used under the guidance of a doctor.