Inflammatory nodules: acute suppurative thyroiditis, subacute thyroiditis, chronic lymphocytic thyroiditis, thyroid tuberculosis or syphilis.

2. Cystic nodules: cystic changes of thyroid nodules, cystic changes of thyroid cancer, bleeding of adenoma and cancer, inflammatory abscess, congenital thyrohyoid cyst and cysts caused by residual fourth branchial fissure.

3. Hypertrophic nodules: thyroid sarcoidosis, amyloidosis, the highest or lowest iodine intake, eating goiter-causing substances, taking goiter-causing drugs or thyroid hormone synthesis defects.

4. Tumor nodules: thyroid benign adenoma, thyroid papillary carcinoma, follicular cell carcinoma, Hurthle cell pain, medullary thyroid carcinoma, undifferentiated carcinoma, lymphatic pain and other follicular and non-follicular malignant tumors and metastatic cancers.

Thyroid nodule refers to a lump with abnormal structure of one or more tissues in the thyroid caused by various reasons such as radiation exposure. Thyroid nodules are very common in clinic, especially in women. Thyroid nodules are mostly benign, and malignant nodules only account for about 0. 1% of thyroid nodules.

Thyroid nodules include benign nodules, toxic nodular goiter, simple nodular goiter, strange lymphocytic thyroiditis, subacute thyroiditis and other diseases. Benign swelling and pain are common in thyroid nodules. The clinical manifestations are mass in the neck, fullness and suffocation in the neck, feeling of yin obstruction in the throat, or palpitation, upset, irritability and sweating; A few people can see swelling and pain in the neck and hoarseness.

Thyroid sarcoidosis: Thyroid sarcoidosis can be caused by nodular goiter, thyroid adenoma or thyroid gland. It shows that the neck tumor can move up and down with swallowing. For example, the thyroid gland is obviously enlarged, which can cause symptoms of oppression such as cough, shortness of breath, hoarseness and dysphagia. If there is bleeding in the nodule, there may be swelling and pain, and the nodule is obviously enlarged. It is necessary to pay attention to judging whether the thyroid nodule is benign or malignant. Thyroid nodules in children are 50% malignant, and single nodules in young men, with uneven surface and hard texture, should also be malignant. For example, thyroid nodules suddenly appear and develop rapidly in a short time, and the possibility of malignancy is very high. Multiple nodules with smooth surface and soft texture. Most of them are benign lesions. Isotope scanning, puncture satiety examination and B-ultrasound examination are helpful for diagnosis. Patients inadvertently found goiter or felt a lump, and some of them were diagnosed by routine physical examination or palpation.