A thyroid nodule underwent an ultrasound B-examination and showed hypoechoic features, but this does not necessarily indicate thyroid cancer. It is essential to conduct relevant tests to determine the cause. For such thyroid nodules, it is first important to check their specific size. If there is concern about the presence of a malignant tumor, it is advisable to perform a fine needle aspiration for pathological examination to confirm the diagnosis. If the thyroid nodule exceeds one centimeter and causes local pain or affects surrounding blood vessels, leading to symptoms of compression, it is recommended that patients should promptly undergo surgical removal for treatment.