The normal axillary lymph node size is usually 0.5 to 1cm. The normal size of axillary lymph nodes is between 0.5 and 1cm, which is not easy to be touched and does not cause local discomfort. If the axillary lymph nodes are more than 2cm, patients should go to the hospital for biopsy in time to exclude other malignant lesions. At the same time to find out the cause of lymph node enlargement, generally may be due to local inflammatory stimulation or tumor stimulation and so on. Patients should keep the underarm skin clean and hygienic, maintain a good daily routine to avoid staying up late, prohibit spicy and stimulating food, quit smoking and drinking, and drink more hot water. Eat more vegetables and fruits rich in vitamins and water. Appropriate exercise to promote blood circulation and improve immunity. It is recommended that patients do a good job of underarm skin care, to avoid trauma, if there is discomfort, go to the hospital in time for examination, so as not to delay the condition.