Microscopic thyroid cancer needs treatment. Microscopic thyroid cancer is a malignant tumor of thyroid gland, which cannot be cured by itself and needs to actively receive correct and standardized treatment. If not treated in time, it can metastasize to the lymph nodes in the neck, resulting in lumps in the neck, difficulty in swallowing and so on. After diagnosed with microscopic thyroid cancer, it is mainly treated by medication, surgery, iodine 131 and radiotherapy. Microcarcinoma of thyroid is mainly treated by surgery and can be suppressed by medication, such as thyroid hormone, before surgery. And different surgical treatments are chosen according to the pathologic type of microscopic thyroid cancer and the size of lesions, etc. Surgeries include lobectomy plus isthmus resection on one side of the gland plus lymph node dissection in VI area, total thyroidectomy and so on. If there is residual cancer, iodine 131 and radiation therapy can be carried out. Patients with microscopic thyroid cancer can avoid eating smoked and pickled food and can eat more fresh vegetables and fruits. And they should go to the hospital regularly for follow-up examination and inform the doctor in time if there are other abnormalities in their body to avoid adverse effects.