Objective: The aim of the study was to investigate the TransurethralIncision of prostate (TUIP) and Transurethral resection of prostate (TURP) in small sized benign prostatic hyperplasia regarding their outcome and complications. Study Design: Retrospective comparative study. Place and duration of study: This study was conducted at Shaukat Omar Memorial (SOM) Fauji Foundation Hospital Karachi from October 1997 to December 2009. Methodology: A total of 167 cases were included in this study. Patients were divide in two groups. Group A included 80 cases who were operated by TUIP and group B included 87cases who were operated by TURP (n=167). Patients with large prostate i.e. weight > 35 g, neurogenic bladder and urethral strictures were excluded from the study. In TUIP two (02) incisions at 5 and 7 O'clock position with Colling's knife were made and TURPs done with standard procedure. All cases were performed under spinal or epidural anaesthesia. Patients were followed till 6 months. Results: Mean operative time was 30.8 min for TUIP and 47.3 min for TURP. The improvement in peak flow rate was significant post operatively in both groups (p<0.001)while there was no statistically significant difference found between the two groups regarding their peak flow rate(Q max). Retrograde ejaculation was also noted much less in TUIP group as compared to that in TURP group(p<0.05).Other complications like Urinary tract infection, haematuria,post operativeorchitis and post TURP syndromewere not statistically significant (p>0.05) Conclusion: The study suggests that both TUIP and TURP showed almost equal maximum flow rate improvement but as compared to TURP, TUIP proved to be much superior in retrograde ejaculation, so it should be considered as the treatment of choice in relatively young sexually active patients.