The cause of hoarseness after thyroid nodule surgery needs to be clarified, which may be laryngeal recurrent nerve injury, hematoma compression of the laryngeal recurrent nerve, etc., and requires symptomatic treatment. 1. Laryngeal recurrent nerve injury: due to inadvertent injury to the laryngeal recurrent nerve during thyroid nodule surgery, resulting in hoarseness after surgery, at this time, you can give to improve the circulation, nutrient nerve drugs, such as methylcobalamin tablets, vitamin B12, etc., to alleviate the hoarseness of the symptoms. 2. Hematoma compression of the recurrent laryngeal nerve: due to local wound hematoma after thyroid nodule surgery, the recurrent laryngeal nerve pressure leads to hoarseness of the patient’s voice, at this time, the treatment plan is mainly to reduce the hematoma to promote the subsidence of hematoma, if necessary, surgical incision and drainage. After surgery for thyroid nodule hoarseness need to consult a doctor in time, to clarify the cause of the disease, the use of drugs need to follow the doctor’s instructions.