| Etiology | Frequency | Percentage |
| Isolated hypersplenism | 6 | 21 |
| Drepanocyt dares | 6 | 21 |
| Splenic lymphoma | 6 | 21 |
| Splenic cyst | 3 | 11 |
| Beta-thalassemia | 2 | 7.5 |
| Thrombocytopenic purpura | 3 | 11 |
| Traumatisme | 2 | 7.5 |
| Total | 28 | 100 |