aetiology
Last reviewed 01/2018
- causes of subjective tinnitus (1)
- otologic disorders - most
common cause of subjective tinnitus
- hearing loss
- causes of conductive
hearing loss
- cerumen impaction (ear wax)
- otitis externa
- perforation of tympanic membrane
- middle ear fluid
- otosclerosis
- causes of sensorineural
hearing
- noise-induced hearing loss
- presbycusis
- causes of conductive
hearing loss
- Meniere's disease
- acoustic neuroma
- hearing loss
- ototoxic drugs
- aspirin, aminoglycosides,chloramphenicol, erythromycin, tetracycline,vancomycin, methotrexate, vincristine, furosemide, etc. (1)
- infectious
- otitis media, ,syphillis, Lyme disease, meningitis (2)
- neurological
causes
- multiple sclerosis, head trauma
- metabolic causes
- thyroid diseases
- hyperlipidaemia
- psycological
- otologic disorders - most
common cause of subjective tinnitus
- causes
of objective tinnitus (rare)
- vascular abnormalities
- these are associated with pulsatile tinnitus
- causes include :
- arteriovenous malformation, vascular tumors (Glomus tumor )
- neurological
diseases
- idiopathic stapedial muscle spasm
- eustachian tube dysfunction
- vascular abnormalities
Reference:
objective tinnitus - tinnitus-like noise that can be heard by the examiner