Sinus surgery can not be generalized to say that it is not a major surgery, what location of the sinus. Generally speaking are to are the abdominal wall of the sinus more a little bit, in the past have done abdominal surgery, for example, there is an intestinal fistula and abdominal wall connected to the formation of a sinus, this sinus is not healed for a long time, the operation is the need to the abdominal wall of the sinus, together with the relevant intestinal tube and resection, so that it is a relatively large operation. There are also sinus tracts, may be perianal sinus tracts, perianal sinus tracts, to be divided into low and high, if it is a low sinus tract, directly to the sinus tract can be excised, so that it is considered a small operation, but if the high sinus tract, it is more troublesome, and there is a need to do other corresponding surgery.