Thyroid nodules have a 10% rate of malignancy! The development of thyroid nodules may be related to genetic factors and improper use of iodized salt. After the national policy of universal salt iodization, the incidence of “big neck disease” has dropped significantly. However, in recent years, many new patients with thyroid nodules are still found in the clinic. According to expert analysis, this may be related to genetic factors and improper use of iodized salt. Although thyroid nodules do not cause discomfort in most cases, experts warn that thyroid nodules have a 10% rate of malignancy. If you find that a nodule continues to grow in size within a month or two, or if your voice becomes hoarse for no apparent reason, you need to be vigilant and it is best to have surgery for thyroid nodules as soon as possible.