Background: The Posterior capsule rupture is one of the most serious intra-operative cataract surgery complication that affect the success of Cataract operation and its outcome, results in relation to visual outcome and the quality of life to the patients. Objectives: 1) To identify our rate of Posterior capsule rupture. 2) To figure out possible related risk factors. Type of study: A retrospective study of all Cataract surgeries done in 2016 in Shaheed Dr. Aso teaching Eye specialty hospital, which is the only and main eye hospital in Sulaimaniya city, Kurdistan region of Iraq. Statistical Analysis: Statistical Package of Social Sciences 24 (SPSS-24). Patients and Methods: A retrospective study done on the file data of 1057 files(eyes/patients) underwent cataract surgeries either by phacoemulsification, extra-capsular cataract extraction or small incision cataract surgery at 2016, all useful information and details from the files were taken and analyzed. Inclusion Criteria: All good documentation files of cataract surgeries taken, regardless of cataract maturity classification as immature, mature and hypermature and regardless of surgeries done by hands of specialist, or training surgeons under supervision of seniors and regardless of types of machines of phacoemulsification, 1057 files taken. Exclusion Criteria: Vague or defective and in adequate information and documentation files were excluded, we exclude eight files only. Results: The rate of Posterior Capsular Rupture was 58 (5.4%) eyes in all cataract surgeries, 1057 eyes, that done by hands of highly qualified specialists or supervising the training resident surgeons, of those 58 eyes, 32 eyes ends with primary intraocular lens implantation, 16 eyes with secondary intraocular lens implantation and 10 eyes left as Aphakia. Risk stratification done by data available preoperatively, the maturity of cataract in which hypermature cataract had (22.2%), (95% CI 1.17 to 16.98; OR: 5.40) and P>0.001 risk for Posterior capsular rupture, and type of surgery in which ECCE had 6.9% risk factor (95% CI 1.03 to 3.13; OR 1.80), P> 0.036. Conclusion: Although Posterior capsular rupture in the average but it’s still significant.