Multiple hypoechoic nodules in the left neck is the description of the ultrasound examination, and it is recommended to further diagnose and choose the general treatment, medication and surgery according to the etiology of lymphadenitis, thyroid disorders and metastatic tumors. If lymphadenitis is caused by decreased immunity or upper respiratory tract infection, it is recommended to first pay attention to rest, increase the intake of vitamins as well as proteins to improve immunity. If it is clearly diagnosed as lymphadenitis, it is recommended to take anti-inflammatory drugs such as amoxicillin for treatment; if it is clearly diagnosed as benign thyroid nodule without surgery, it can be treated with anti-thyroid drugs such as compound iodine oral solution and propylthiouracil as prescribed by the doctor. If the diagnosis of thyroid cystadenoma, thyroid cancer, thyroid nodules and metastatic tumors that meet the indications for surgery are clearly diagnosed, it is recommended that surgical resection can be adopted. Therefore, it is recommended to further clarify the diagnosis in time and take appropriate treatment according to different causes under the guidance of doctors.