Grade 1 refers to a normal thyroid gland;
Grade 2 refers to some benign lesions of the thyroid gland, and malignancy may increase with time, such as simple thyroid cysts, which need to be reviewed by ultrasound once every 1-2 years;
Grade 3 refers to the presence of nodules in the thyroid gland but with a higher chance of malignancy. Cystic solid nodules are common, need to review the ultrasound once every 3-6 months;
Grade 4 refers to the presence of nodules in the thyroid gland, but the benign and malignant is not good to focus on, the total degree of malignancy is 5-80%, and it is recommended that puncture biopsy to obtain pathology. It is further divided into 4a, 4b, and 4c, and the degree of malignancy also increases in turn;
Grade 5: refers to the presence of nodules in the thyroid gland, but most of them are malignant, malignant chances >80%, and it is recommended that a puncture biopsy be taken to obtain the pathology or direct surgical treatment;
Grade 6 refers to the presence of nodules in the thyroid gland, but most of them are malignant, malignant chance>80%, and it is recommended that a puncture biopsy be taken to obtain pathology or direct surgical treatment;
6 refers to nodules in the thyroid gland that has already been done for the pathology, and confirmed malignancy.
It can be understood in this way, if the classification of thyroid disease is below grade 3, it should be benign lesions, and should be treated early to avoid further deterioration of the condition; if it is more than grade 4, usually the doctor will report to grade 4c, then the patient needs to actively cooperate with the doctor, through the addition of other examination methods to further confirm the diagnosis!