The voice recovery time after thyroid tumor surgery varies from person to person: 1. During the surgery, when the nodule grows in the back of thyroid gland, that is, adjacent to the nerve, or even violates the nerve, or there is nerve degeneration, most of the patients can basically recover to the voice state before the surgery in one month or so after the surgery. Laryngeal recurrent nerve into the larynx is divided into several branches, relatively thin, through the pliers to separate the nerve, the thyroid mass and the nerve to separate in order to remove the mass, may have a certain impact on the nerve, edema. 2, some patients with the nerve and mass is relatively close to the need for pliers to separate the nerve, some patients need to be sharply separated from the blade, after the separation of the nerve function damage may be a medium degree of damage, the post-surgery may be very hoarse, speaking effort, may after 10-10 days to speak, and the voice state before the surgery. After the surgery, the voice may be very dumb, and it is difficult to speak, and the speaking force may be slightly higher after 10-20 days, and the voice pitch may be slightly louder, but some patients may not be able to recover in 3-6 months or even more than one year, or even longer.3. For patients whose nerves encircle the whole mass, the tumor has to be completely eradicated after encircling the mass, or the whole laryngeal recurrent nerve innervating the activities of the vocal folds cannot be preserved, and the recovery of this kind of patients’ voices will take even longer, and they may need to have compensation for the contralateral vocal folds. The voice recovery time is longer in this patient, and the contralateral vocal folds may need to be compensated, which generally does not restore the preoperative voice.