The most common cause of enlarged lymph nodes is inflammatory lymph node hyperplasia, of course, the possibility of lymphoma is not excluded. 1. Inflammatory lymph node hyperplasia: under the stimulation of inflammatory factors, lymph nodes in lymphatic drainage area can be enlarged, the lymph nodes are soft in texture, the enlargement process is slow, and can be moved locally under the external force of fingers and accompanied by pressure and pain, and the swelling can be reduced and the pressure and pain can disappear after anti-inflammatory drugs are given. 2. Lymphoma: If the enlarged lymph nodes are hard and rapidly expanding to the surrounding area, can not be moved under the external force of fingers, without pain and accompanied by persistent fever, night sweats, emaciation, etc., it is suspected that it may be lymphoma, and it is necessary to go to the hospital in time for the biopsy test of lymph nodes.