causes of tinnitus

Causes of tinnitus include:
Otologic problems and hearing loss:
conductive hearing loss
external ear infection
cerumen (earwax) impaction
middle ear effusion
sensorineural hearing loss
excessive or loud noise
presbycusis (age-associated hearing loss)
Meniere's disease
acoustic neuroma
ototoxic medications
analgesics:
aspirin
nonsteroidal anti-inflammatory drugs
antibiotics:
aminoglycosides
chloramphenicol
erythromycin
tetracycline
vancomycin
chemotherapy drugs:
bleomycin
cisplatin
mechlorethamine
methotrexate
vincristine
loop diuretics:
bumetanide
ethacrynic acid
furosemide
others:
chloroquine
quinine
mercury
lead
neurologic disorders:
multiple sclerosis
head injury
skull fracture
closed head injury
whiplash injury
temporomandibular joint disorder
metabolic disorders:
thyroid disorder
hyperlipidemia
vitamin B12 deficiency
psychogenic disorders:
depression
anxiety
other disorders:
fibromyalgia
hypertonia (Muscle Tension)