Postoperative sequelae? Generally, there will be no major surgical sequelae, scars, local nerves being cut off, numbness and abnormal sensation. It is mainly to continue radiotherapy and chemotherapy after operation. If only a single lymph node is removed, chemotherapy should be given immediately. If it is a large-scale lymph node resection, chemotherapy should be given after the incision is removed, and chemotherapy must be given to avoid recurrence and metastasis.