Aetiology | Number | Percentage (%) |
Trauma Foreign body Allergic rhinitis Infective rhinitis Sinonasal tumour Nasopharyngeal carcinoma Hypertension Septiceamia Chronic renal failure Sickle cell diseases Idiopathic Others | 52 14 7 33 22 3 11 2 3 4 19 6 | 29.5 8.0 4.0 18.8 12.5 1.7 6.3 1.1 1.7 2.3 10.8 3.4 |