0.05). The preoperative Q max of group A was significantly inferior than that of group B and C, with statistically significant difference ( P<0.05) and group B was significantly inferior than group C, with statistically significant difference ( P<0.05). The preoperative PVR of group A was significantly higher than that of group B and group C, with statistically significant difference ( P<0.05)and group B was significantly higher than group C, with statistically significant difference ( P<0.05). The above indicators were followed up to compare the improvement for the three groups of patients. Seventy-two patients were followed up for free Q max(fQ max) PVR, IPSS and QOL score from March 2019 to June 2019. Results:The 72 patients were followed up for 3 to 52 months, with an average of 31.1 months. Postoperative IPSS of the three groups were(25.50±2.84), (16.78±4.04)and(14.98±3.41), respectively. The QOL were (2.90±1.29), (2.67±0.88)and(2.53±0.92), respectively. The fQ max was (5.44±2.60), (10.30±3.68)and(13.07±3.51) ml/s, respectively, and PVR was(104.00±46.00), (76.81±46.74)and(35.64±26.17)ml, respectively. Compared with the preoperative parameters, QOL in group A was significantly improved, with statistically significant difference ( P<0.05) and the IPSS, fQ max and PVR in group A were improved, but the difference was not statistically significant ( P>0.05). The IPSS, QOL, fQ max and PVR in group B and C were significantly improved compared with the preoperative parameters, and the difference was statistically significant ( P<0.05). Conclusions:The subjective and objective indicators of DU patients can be improved after TURP, while for those patients whose P detQmax≤20 cmH 2O, only QOL can be improved significantly, and the other indicators can not be improved. Therefore, adequate communication should be made before surgery to inform reasonable expectations for the DU patients.