The thyroid gland is an important endocrine organ in human body, located under the anterior thyroid cartilage of the neck, immediately in front of the third and fourth cartilage rings of the trachea. The thyroid hormone it produces plays an important role in maintaining the caloric balance, growth and development as well as reproductive function of human body. However, because of its hidden location and the outer side covered by the striated muscles of the neck, it is difficult to detect the tumor in time when it occurs. Generally, tumors of 3 cm or more have a change in appearance and shape. Thyroid tumor is only one kind of thyroid disease, and the incidence is about 30% of thyroid disease. It can be single or multiple, benign or malignant, but benign thyroid tumors are most common in clinical practice. young adults between the ages of 20 and 50 have a high incidence of thyroid tumors, and the incidence of thyroid tumors in women is 2-4 times higher than in men.