Bilateral cervical lymph nodes are not detected, is the ultrasonographer in the neck ultrasound, the cervical region of the lymph nodes for scanning and exploration of the diagnosis, usually refers to the discovery of no obvious enlarged lymph nodes, suggesting that the inflammation or tumor did not invade the bilateral cervical lymph nodes. In patients with abnormal nodules found in the thyroid, screening of the cervical lymph nodes is routinely performed to determine whether the nodal lesion has lymph node involvement or to assist in the diagnosis of the specific lesion of the nodule through the changes in the lymph nodes. Patients with thyroiditis and thyroid tumors often have lesions that involve the cervical lymph nodes, and if markedly enlarged lymph nodes are detected on ultrasound scanning, changes in the condition can be detected and treated in a timely manner. In addition, other diseases may also lead to enlarged lymph nodes in the neck, such as inflammation of the oral cavity, pharynx and nasal cavity, breast and other places, tumors, etc. Connective tissue diseases may also cause swelling of the lymph nodes in the neck. Connective tissue diseases such as systemic lupus erythematosus and tuberculosis may also cause swollen lymph nodes in the neck. Lymph nodes that are not visibly enlarged bilaterally in the neck are usually not serious, and it is recommended to choose the appropriate treatment with the advice of the clinician.