Lymph node grade 3 means that the lymph nodes are large in size but mostly benign. Lymph nodes are a chronic granulomatous disease in the lymphoreticular system, the cause of which is unclear, possibly due to autoimmune abnormalities, and most are benign lesions. There are 5 grades of lymph nodes, the higher the grade, the more severe the lymph node condition. Grade 1, there are usually no obvious symptoms, so it is not easy to be detected after the onset of the disease. Grade 2, the lymph nodes will appear as corn-like nodules and can be touched by hand. In grade 3, the number of nodules is more than grade 2, and the size of the nodules is larger, but most of them are benign. Grade 4, the nodules are larger and require biopsy to determine their nature. Grade 5, most of the nodules will be malignant and require surgical treatment. If lymph nodes are found, it is recommended that patients go to the hospital for examination as soon as possible and do not treat them without authorization. According to the biopsy results, follow the doctor’s instructions for relevant treatment.