Ultrasound examination of the thyroid gland: diffuse changes in the thyroid gland, multiple nodules on both lobes of the thyroid gland mostly suggest autoimmune thyroiditis, thyroid nodules. 1. If the ultrasound examination suggests diffuse changes of the thyroid gland, most of them are combined with autoimmune thyroiditis. If the thyroid function test suggests that the thyroid function is normal, there is no need for special treatment; if the thyroid function test suggests hyperthyroidism, then it is necessary to take methimazole and other antithyroid drugs for treatment; if it suggests that hypothyroidism needs to be treated by taking levothyroxine tablets to supplement the thyroxin. 2. If the ultrasound examination suggests multiple nodules in both lobes of the thyroid gland, it is necessary to clarify the benign or malignant nature of the nodules; if they are benign, regular follow-up is sufficient; if they are malignant, surgery is required, and thyroxine should be taken for life instead of therapy after the operation. If the thyroid ultrasound indicates diffuse changes in the thyroid gland and multiple nodules in both lobes of the thyroid gland, it is recommended to go to the hospital for further examination to avoid delaying the condition.