The aim of this study was to assesss epidemiological, clinical and the therapeutic aspects of annexial masses. We have performed a retrospective study from 15/09/1994 up to 31/12/1997 including 74 patients. The prevalence rate was 18.40% of the overall gynecologic surgery in our department. Mean age was 36 years old. The range 30-41 years represented 40.5% of our cases. The mean gestity was 4 and the average parity 4. The most common clinical features were pelvic pains (75.57%) and hypogastric masses (50%). The duration of the disease ranged from 1 to 10 years. The general status was good in 94.59% of cases, bad with ascites in 5.41%. The annexial masses were cystic in 87.83%. The ovarian cysts were located at the both sides in 45.94, and bilateral in 8.10%. The annexial masses were solid in 9.45%. An abscess was found in 6.75%. We have performed an annexectomy in 66.1% and a cystectomy in 16.21%. The post operative complications were wound suppuration in 13.51%. The mortality rate was 1.35%. At the long-term follow up we have noticed an eventration in 1.35% and a recurrence with need of reintervention in 16.21%. The pathologic exam found a benign tumor in 95.16% and a carcinoma in 4.84%. The annexial masses are very common in our practice. They involve young multipare women. The main clinical outcome is pelvic pains. Annexectomy is the principal treatment.