If there are thyroid nodules after total thyroidectomy, it may be a recurrence of thyroid cancer, and the next step of treatment should be carried out under the guidance of a doctor. If there are thyroid nodules after total thyroidectomy, it is considered that thyroid cancer may recur. The reasons for recurrence may include the cancerous lesion breaks through the outer membrane of the thyroid gland and invades the surrounding tissues such as muscles, nerves, blood vessels, etc., so the surgery can not completely remove it cleanly; the surgery removes the thyroid gland and the lymph nodes in the area, but can not remove the latent cancerous cells or tiny cancerous foci. Patients with recurrence of thyroid cancer need further surgery or radiation therapy under the guidance of doctors, etc., and should strictly follow the doctor’s instructions.