When thyroid nodules are relatively large in size, they can cause pressure on the surrounding organs and tissues, resulting in hoarseness. The exact size varies from person to person and is also related to the location of the nodule; there is no specific measurement. The recurrent laryngeal nerve is located on the back side of the thyroid gland. An oversized thyroid nodule can cause hoarseness when it presses on the recurrent laryngeal nerve. Hoarseness can also be caused by other reasons, such as inflammation of the vocal cords, tumors and so on. It is recommended that the patient go to the hospital in time to improve the examination under the guidance of the doctor, to clarify the cause of the disease, and to carry out targeted treatment. If the hoarseness of voice is caused by oversized thyroid nodules, the patient should promptly choose the appropriate surgical method according to his/her personal situation and undergo treatment. If there are thyroid nodules hoarse voice, it is recommended to go to the hospital in time, clear diagnosis, if necessary, surgical treatment.