Inflammation of the lymph nodes at the root of the thigh will be characterized by redness, swelling, heat and pain of inflammation, enlargement of the lymph nodes, obvious pressure pain in the lymph nodes, and redness of the skin on the surface. At this time, the inflamed lymph nodes can be treated with oral cephalosporin antibiotics, such as cefmenoxime, amoxicillin, ceftazidime, etc. Inflammation of the lymph nodes at the root of the thigh may also be caused by inflammation of the perineum, pelvis, lower extremities and other nearby organ tissues, so treatment for the original disease is also needed. Most inflamed lymph nodes at the root of the thigh will shrink and the pain will disappear after a series of antibiotic treatments. If the lymph node symptoms still do not improve at this time, a lymph node biopsy or puncture should be performed to clarify the cause of the lymph node lesion.