Breast cancer surgery is associated with low rates of surgical morbidity. Postoperative complications related to breast surgery include seroma , infection, hematoma, mastectomy flap necrosis , wound dehiscence , persistent postsurgical pain, Mondor disease , fat necrosis , reduced tactile sensation after mastectomy, and venous thromboembolism . Postoperative complications related to axillary surgery include seroma, infection, lymphedema , nerve injury, and reduced shoulder/arm mobility. The overall rate of complication related to axilla surgery may be confounded by the type of breast surgery performed. The management of postoperative complications related to oncologic breast and axillary surgery independent of reconstruction is reviewed here.