Background and Objective Cervical incompetence is found to be an important cause of mid-trimester pregnancy losses and preterm delivery. However, measurement of cervical length and diagnosis of short cervix by ultrasonography and timely application of cervical cerclage can carry these pregnancies to term and eventually lead to a successful outcome. Methods The present retrospective observational study included 50 pregnant women diagnosed with cervical incompetence. Mc Dondald’s cervical cerclage was placed and its effectiveness was considered by successful pregnancy outcome. Results Out of the 50 patients recruited into the study 41 (82%) patients had successful pregnancy outcome with delivery at term and 6 (12%) patients had preterm delivery. This shows that timely diagnosis and placement of cervical cerclage is effective and leads to successful pregnancy outcome especially in those with history of mid-trimester pregnancy losses and preterm delivery.