The main causes of thyroid nodules in women include: First, it is considered to be due to endocrine disorders caused by irregular life, frequent late nights or stressful work and life, which leads to changes in the structure of the thyroid gland and thus causes thyroid nodules. Second, it is considered to be due to the history of radiation exposure to the neck and other causes of nodules in the thyroid gland. The occurrence of thyroid nodules has a certain genetic probability, so if parents or grandparents have thyroid nodules, their children will have a higher probability of having thyroid nodules. Thyroid nodules are a common thyroid disorder in women. The typical symptom is a lump in the thyroid gland, which can be identified by ultrasound or CT examination of the thyroid gland. If a thyroid nodule is more than 1 cm in diameter, surgery is recommended. If the diameter is less than 1 cm and the boundary is clear, and the blood flow signal is not abundant, conservative treatment can be considered.