If lymphatic metastasis is found in postoperative pathology of thyroid cancer, it is necessary to actively cooperate with doctors to carry out lymph node dissection through surgical treatment, and assist in follow-up treatment after surgery, such as drug treatment, iodine 131 treatment, radiotherapy, chemotherapy and so on. Generally, if lymphatic metastasis is found in the postoperative pathology of thyroid cancer, the corresponding follow-up treatment plan should be formulated according to the type of thyroid cancer. If it is papillary or follicular thyroid cancer with relatively low malignancy, thyroid stimulating hormone, iodine 131 and other comprehensive treatments should be carried out after surgery. If it is undifferentiated thyroid cancer, medullary carcinoma, which belongs to low differentiation type, local radiotherapy or systemic chemotherapy should also be considered after surgery. It should be noted that, after thyroid cancer thyroid cancer postoperative pathology found lymphatic metastasis, after another operation, patients may need lifelong medication, such as levothyroxine sodium tablets, which can inhibit the growth of the tumor and reduce the probability of postoperative recurrence. However, the medication must be used according to the doctor’s instructions, and must not be overdosed to avoid side effects.