Nodular goiter Most of the thyroid nodules are benign nodules, either solitary or multiple. Some have endocrine function, which is clinically known as nodular hyperthyroidism, while others have no endocrine function, which is known as general nodular goiter, and some are hypofunctional and should be considered as possible thyroid tumors. The diagnosis of simple nodular goiter is generally not difficult, with a long medical history, mostly without pressure symptoms, and generally normal clinical manifestations, and its thyroid tissue may shrink to varying degrees when treated with thyroid preparations. The final diagnosis should rely on pathological examination to clarify the nature of the thyroid nodule, relying only on the general medical history, physical examination, laboratory tests or radionuclide examination can not make 100% judgment and diagnosis of malignant nodules. Thyroid cysts A thyroid cyst is a sac containing fluid found in the thyroid gland. Thyroid cysts are usually asymptomatic unless the cyst is very large or there is bleeding within the cyst, which may then cause some symptoms of pressure such as pain, difficulty swallowing, difficulty breathing, and hoarseness. In general, thyroid cysts rarely have malignant cells and usually just need to be observed to see if they tend to get bigger. We recommend that you consult a specialist for consultation and treatment. Hashimoto’s thyroiditis Hashimoto’s thyroiditis is an endocrine disease that is most prevalent in women and can extend and develop into Hashimoto’s hypothyroidism if not treated in a timely manner. The onset of Hashimoto’s thyroiditis is slow and most patients do not feel anything at the time of onset, but gradually the thyroid gland becomes enlarged. In a few patients with advanced thyroid disease, there is a large amount of fibrosis in the thyroid gland, which is as hard as stone and often adheres to the surrounding tissues, resulting in progressive pressure symptoms, breathing difficulties, swallowing difficulties and other symptoms.