How long it takes to recover from a hoarse voice after an incision for a thyroid nodule is related to the cause. Inflammatory swelling caused by the general 1 to 2 months can be recovered; the laryngeal nerve is pulled or clamped caused by the laryngeal nerve, usually 3 to 6 months; if the laryngeal nerve is cut off caused by the laryngeal nerve, can not be recovered. 1. Inflammatory swelling: If the swelling of the tissue after surgery compresses the nerve and leads to hoarseness, usually anti-infective treatment (such as taking amoxicillin, cefaclor and other antibiotics), the voice can be restored in 1 to 2 months after the swelling is reduced. 2. The recurrent laryngeal nerve is pulled or pinched: it is easy to pull or pinch the recurrent laryngeal nerve during thyroid surgery, resulting in recurrent laryngeal nerve damage and hoarseness, usually applying methylcobalamin and other nutrients to the nerves, and it usually takes 3-6 months for the hoarseness to recover. 3. The recurrent laryngeal nerve is cut off: If the recurrent laryngeal nerve is cut off by mistake during the surgery, resulting in hoarseness, it is difficult to recover, and it is necessary to rely on the opposite side of the recurrent laryngeal nerve to compensate for the gradual recovery of the part. Thyroid surgery should be operated carefully, and if you find hoarseness after surgery, you should find out the cause in time and deal with it accordingly.