Background: The retained design products (ROC) make around 1% of all births difficult and are characterised as placental trophoblastic residues. The purpose of this research was to assess the diagnostic accuracy of sonography in individuals who believed they had retained placental fragments after and after the abortion. Methods: 150 postpartum and post abortion women were included in the research, in whom the placenta examination raised suspicions of placental pieces retained. The uterine cavity was manually explored by all these ladies. Prior to the operation, all patients were separated into two groups using two-dimensional sonographic images. The first group comprised of individuals in whom sonography echoes were revealed that may appear as trophoblastic residual tissue, echogenic, hypo-echoic and mixed intra-cavitarian patterns. The second category included women who were considered to have an empty uterus or nothing but an intrauterine accumulation of fluid. Results and Conclusion: Six of these individuals exhibited little and clinically insignificant remaining trophoblastic tissue. Sonography indicated retaining placental tissue in 33 individuals. All these individuals have been verified residual trophoblastic tissue by pathological testing. Sonography is an efficient technique to assess the retention of placental fragments in postpartum and post-abortion patients. Normal sonographic results may avoid the necessity for uterine cavity physical investigation. A doubtful sonographical finding is not a useful technique to differentiate placental fragments from blood clots alone.