The specific need for a puncture of a thyroid nodule needs to be determined in conjunction with the grading. Generally, nodules less than grade 3 do not need puncture, and grade 4a or above may need puncture biopsy. 1. Thyroid nodules are graded by ultrasonography and generally have smooth edges, regular morphology, uniform echogenicity, aspect ratio of less than 1, and overall grading of less than grade 3, with a very low likelihood of malignancy, so they do not need to be punctured and biopsied, and only need to be reviewed regularly. 2. The examination reveals that there are signs of malignancy such as irregular margins, visible lobes, uneven echogenicity, vague calcification, and an aspect ratio greater than 1. If the grading is above grade 4a, the possibility of malignancy is relatively high, and a puncture biopsy is needed to diagnose the specific type of pathology. Thyroid nodules are highly suspected of malignancy and require timely medical examination and standardized treatment under the guidance of a doctor to avoid delays in the condition.