An Observational Study on Postoperative Symptoms After Thyroidectomy (POS-T)

Inclusion Criteria: * 19 years of age or older * Those who have been confirmed to have a malignant tumor of the thyroid gland by biopsy or imaging * Subjects who have undergone partial thyroidectomy or total resection within 1 month * Those who have agreed to the implementation of Chinese medicine treatment * The Eastern Cooperative Oncology Group(ECOG) performance status 0-3 * Those who understand the content of the study and agree to participate in the study Exclusion Criteria: * ○ When it is judged that other diseases other than cancer (dementia, cerebrovascular disease, severe organ failure, etc.) may have a significant effect on the decline of physical function * When it is judged that the life expectancy is less than 3 months and sufficient follow-up cannot be carried out * When emergency or major surgery or surgical intervention is required that takes precedence over postoperative treatment * Pregnant and lactating women * Other researchers who are judged to be unsuitable for research