Teratoma is a type of tumor disease originating from germ cells, clinically classified into benign and malignant categories. The specific cause of teratoma formation is currently unclear; it is considered to be due to abnormal mutations occurring during the development of germ cell tumors, thereby forming tumors. The formation of teratomas also involves some inducing factors, such as familial genetic history. Due to specific genetic mutations in the family, the incidence of familial teratomas increases. Additionally, some external infections are also related to the occurrence of teratomas, ultimately leading to their formation.