What does thyroid 4b mean?

Thyroid 4b suggests that thyroid nodules reach Grade IV. At this time, the thyroid shape is irregular and the blood flow in the nodules is rich, and there is the possibility of malignant transformation. It is suggested to go to the endocrinology department of the hospital for treatment, perfect relevant examinations and symptomatic treatment. If thyroid nodules are not treated in time, they may develop into malignant tumors.