Enlarged clavicular lymph nodes are located in the supraclavicular fossa, which is the depression above the clavicle. The clavicular lymph nodes are located on both sides of the neck, in the depression above the clavicle, that is, in the supraclavicular fossa, and due to the deep location of the lymph nodes it is difficult to palpate the enlarged lymph nodes in this area, accompanied by the subclavian artery and brachial plexus nerves in the surrounding area. Enlarged lymph nodes in the clavicle need to be alert to lesions in the drainage area of the lymphatic system, such as pathogenic microbial infections, malignant tumors of the lymphatic system, and metastasis of tumors in the lungs, liver, and mammary glands, etc., and should be examined as early as possible to confirm the diagnosis and then treated in a timely manner. If you find enlarged lymph nodes in the clavicle, you need to go to the hospital in time for further detailed examination of the cause of the enlargement and then treatment.