This article introduced the experience of TCM expert Tan Xinhua in the treatment of upper extremity lymphedema after breast cancer surgery. TCM expert Tan believes that the basic pathogenesis of upper extremity lymphedema after breast cancer surgery is deficiency of vital energy, toxin stasis, blood stasis and water retention. The general treatment is mainly based on tonifying qi and activating blood circulation, combining dispelling wind and activating meridians and referring to meridian ushering medicine to reach disease places. He also emphasizes the importance of balance between deficiency...