前列腺切除术是泌尿外科的常见手术，对出血的观察是术后管理的重要内容。目前临床上对术后出血多为定性观察，缺少客观指标。为建立一种前列腺术后出血的定量观测方法，以准确判断出血情况，指导治疗，我们采用MACRO精子计数器观测4O份不同稀释度的含血样本平均红细胞数，并代 Prostatectomy is a common surgery in urology, the observation of bleeding is an important part of postoperative management. Clinically, postoperative bleeding is more qualitative observation, the lack of objective indicators. In order to establish a quantitative observation method of postoperative prostate bleeding in order to accurately determine the bleeding and guide the treatment, we use the MACRO sperm counter to observe the 4O blood samples with different dilutions of the average number of red blood cells, and on behalf of