Yes. Most thyroid nodules remain stable over many years. Some can increase in size and some can decrease. It depends on the composition of the nodule.
Nodules shrink. Thyroid nodules can both grow and shrink. Generally the grow over the course of time.
Depends on type. If cancer, surgical removal and then treatment, possibly with radioactive iodine. If benign, but causing hyperthyroidism, then treat with radioactive iodine, antithyroid medicines, or possibly surgery. If benign and not causing symptoms, can watch closely (after benign biopsy) or use thyroid medicine to suppress growth of the nodule. If it causes symptoms (trouble swallowing), surgery. Read more...