If the lymph nodes are not significantly enlarged and painful, there is no need to worry too much, it may be normal. When bacterial or viral infection occurs in the body, it will lead to swollen lymph nodes and fusion. When the infection improves, the swollen lymph nodes can gradually shrink and subside, but in some patients, the lymph nodes do not subside well, so the swollen lymph nodes will always exist. If the blood supply of lymph nodes is abnormal or the aspect ratio is changed during the observation period, it is necessary to improve relevant examinations, such as CT, tumor markers, including lymph node biopsy, in order to clarify whether there are other lesions, such as lymphatic tuberculosis, lymphoma, or even lymph node metastasis of malignant tumors.