Thyroid nodule category 3 is a benign nodule that does not usually heal on its own, and it is recommended that the thyroid ultrasound be reviewed annually. Thyroid nodule category 3 suggests that the nodule may be benign, this kind of nodule will not heal on its own, it is recommended to review the thyroid ultrasound on a regular basis, if the nodule shows signs of malignancy, it is necessary to carry out a thyroid puncture biopsy and so on to determine the benignity and malignancy of the nodule, if the result of the puncture cytology is negative, it will be benign, if it is positive, then it suggests that malignant lesions of thyroid gland, which requires surgical treatment. If the examination reveals category 3 thyroid nodules, it is recommended to review the thyroid ultrasound regularly to observe the changes in the size of the nodules, which can be evaluated by a specialist for the next step of the treatment plan.