Normal people usually do not have thyroid nodules in their bodies. Thyroid nodules are abnormal, but they do not necessarily lead to symptoms in the body and require regular review and observation of changes. In normal people, the overall composition of the thyroid gland is homogeneous, and the thyroid gland functions normally, so there are usually no nodules. The presence of thyroid nodules indicates a certain degree of physical abnormality, which may be related to a prolonged high iodine diet and abnormal hormone levels. A combination of ultrasound and blood tests is needed to make a comprehensive assessment of thyroid function. A large proportion of thyroid nodules, although abnormal, do not cause physical symptoms and do not require special intervention. Regular checkups of ultrasound, thyroid function and other indicators are sufficient; for suspected abnormalities, a puncture biopsy can be performed to confirm the specific condition before standardized treatment. If you find thyroid nodules, please consult the hospital in time and take active treatment to avoid delaying your condition.