The best way to treat anal fistula in 11 year olds does not exist clinically. 11 year olds can be treated by general treatment, blockage method and surgery. 1. general treatment: 11-year-old child anal fistula should drink a lot of water, light diet, keep bowel movement, keep the anus dry and clean, prevent bacterial infection. 2. blockage method: the use of metronidazole, saline rinse fistula, with bioprotein gel injected from the external mouth, the method is non-invasive and painless, but can not completely cure anal fistula, applicable to simple anal fistula children. 3. Surgery: Surgery to cut or remove the fistula, the formation of open wounds, to promote healing. The advantage is that it can completely cure the fistula, but there is a certain risk of surgery, there may be a risk of damage to the anal sphincter, resulting in the possibility of anal incontinence of the child. Once the 11-year-old child anal fistula is found, it should be timely to go to the hospital, under the guidance of the doctor to carry out reasonable and standardized treatment, follow the doctor’s instructions.