Under normal circumstances, the lymph nodes in the neck can be seen in ultrasound examination, if only the lymph nodes are visible don’t worry about it, when the lymph nodes are obviously enlarged, it is necessary to pay attention to it. Under normal circumstances, ultrasound examination of the neck can see the body’s normal lymph nodes, lymph nodes do not need to worry about when there is no obvious enlargement, if the lymph nodes are obviously enlarged, then need to pay attention. Lymph node enlargement can be caused by a variety of reasons, generally more common with inflammation-induced lymph node enlargement, other lymph node tuberculosis and tumor lymph node metastasis, etc., can lead to abnormal enlargement of lymph nodes. If the ultrasound suggests that the lymph nodes in the neck are obviously enlarged, it is necessary to go to the hospital for further examination to clarify the cause of the disease, such as cervical CT or even lymph node biopsy, so as not to delay the condition.