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