All surgical procedures have minor or minor complications, and cochlear implant surgery also has some manageable complications, including: 1) surgery-related complications, such as incisional bleeding, incisional infection, subcutaneous hematoma, and discomfort caused by minor trauma in the postoperative surgical pathway; 2) implantation-related complications, such as incomplete implantation due to malformation or ossification of the cochlea resulting in postoperative hearing 2. Complications related to implantation, such as postoperative hearing limitation due to incomplete implantation caused by malformation or ossification of the cochlea, ectopic implantation due to abnormal inner ear structure, cerebrospinal fluid leakage, limited hearing sensitivity due to thick flap, and the need for secondary corrective surgery; 3.