Thyroid nodule 2mm*1mm anechoic is a common term used in thyroid ultrasound, which refers to the finding of an anechoic nodule of 2mmx1mm in size during an ultrasound examination of the thyroid gland. Thyroid nodule is a common phenomenon in thyroid ultrasonography. There are many reasons for nodules in the thyroid gland, such as deficiency of iodine, which is the raw material for thyroxine, increased demand for thyroxine, and impaired synthesis and secretion of thyroxine. For the size of 2mmx1mm nodules, and is no echo, generally refers to cystic nodules, benign possibility is relatively large, if the patient does not have obvious symptoms, may not carry out special treatment, regular checkups to the hospital to observe the changes in the nodules can be. If the patient has foreign body sensation in the pharynx, discomfort in swallowing, shortness of breath and other phenomena, or if the result of fine-needle puncture suggests malignancy, surgery should be carried out in time to remove the nodule. Because of individual differences, the specific situation should be based on the actual condition of the patient, and it is recommended that the patient consult a doctor in a timely manner and follow the doctor’s instructions to standardize the treatment.