Because of the reason of doing oral surgery, we often have to deal with the sublingual submandibular gland, and often need to include the sublingual frenulum and submandibular duct, the tongue is easily deformed and edematous during surgery, and the duct is small, so it is easy to damage, in the last case, several points were summarized, which can avoid some risks. 1, reduce the use of suction device, suction device is easy to cause local edema, edema after the anatomical structure is more unclear. 2.Decisively use epinephrine or Surigy to ensure the clarity of the operation, which also minimizes the operation of suture tying to stop bleeding. Chongqing Bishan District People’s Hospital Otolaryngology Head and Neck Surgery Liu Qingjun 3, after surgery, if possible, appropriate open wound, healing is generally not a problem, there is bleeding drainage out or good, the bottom of the mouth bleeding affects the whistle is the biggest ill. 4, the last point is also the most critical point, you can use a colorful non-absorbable suture with a certain toughness from the sublingual frenulum probe into it, so that not only can tracing, but also to explore whether the catheter is intact and unobstructed, after surgery can also do a drainage, as rectal diversion, such an improved surgical method, and can even write an article for everyone to share.