Abstract: Axillary reverse mapping (ARM) is anatomic theoretical foundation based on breast and upper limb lymph axillary lymph injected into different lymphatic populations， ARM can display upper limb lymphatic channels through different tracers during the periods of axillary lymph node dissection and sentinel lymph node dissection, to reduce the rate of postoperative upper extremity edema. Although ARM has a positive effect, it exists a controversy in safety and the relationship between its node and sentinel lymph node.

Key words: Lymph node excision, Breast neoplasms, Lymphedema, Axillary reverse mapping