乳腺癌是中年女性常见的恶性肿瘤,其发病率呈逐年上升趋势,手术切除目前仍是最主要的治疗方法。而乳腺癌改良根治手术切口范围大、出血量多,这不仅影响手术效果,而且关系到患者的手术预后。我科行乳腺癌改良根治术切开皮肤前,沿切口皮下注射0.0003%~0.0005%盐酸肾上腺素止 Breast cancer is a common malignant tumor in middle-aged women, and its incidence is increasing year by year. Surgical resection is still the most important treatment. The modified radical mastectomy breast incision range, bleeding more, which not only affect the surgical results, but also related to the prognosis of patients with surgery. My department of breast cancer modified radical mastectomy before the skin, along the incision subcutaneous injection of 0.0003% to 0.0005% of epinephrine hydrochloride only