Patients with fistula formation in the neck should be analyzed objectively based on the size of the local fistula and whether the fistula is co-infected. A. If the fistula is superficial and small in length, there is no obvious local infection and the fistula does not cause significant swelling or pain. The fistula is likely to absorb itself and heal completely, so special treatment may not be needed for the time being. If the fistula is long and deep, there is a lot of local purulent secretions. The skin around the fistula appears red, swollen, painful and other signs of acute infection. In this case the neck fistula is often not able to absorb and heal on its own and must be treated surgically. The surgery requires complete removal of the fistula along its wall, while avoiding damage to locally important nerves and blood vessels, and the surgery can achieve a complete cure of the fistula.