Tinnitus is a symptom of an underlying condition, and its causes are not always clear. However, some common causes of tinnitus include:
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Hearing loss: Tinnitus is often associated with some degree of hearing loss, which can be caused by aging, exposure to loud noises, or ototoxic medications.
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Earwax or ear infection: Blockage of the ear canal by earwax or fluid from an ear infection can trigger tinnitus.
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Jaw joint problems: Problems with the temporomandibular joint (TMJ), which connects the lower jaw to the skull, can cause or worsen tinnitus.
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Tumor-related disorders: A vestibular schwannoma (acoustic neuroma) is a benign tumor on a nerve that leads from the inner ear to the brain. Acoustic neuromas and other head, neck, and brain tumors can cause tinnitus.
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Blood vessel problems: High blood pressure, atherosclerosis, or malformations in blood vessels, especially if they are in or close to the ear, can alter blood flow and cause tinnitus.
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Medications: Tinnitus can be a side effect of taking certain medications, especially if they are taken at high doses. Medications associated with tinnitus include non-steroidal anti-inflammatory drugs (e.g., ibuprofen, naproxen, and aspirin), certain antibiotics, anti-cancer drugs, anti-malaria medications, and antidepressants.
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Chronic conditions: Diabetes, migraines, thyroid disorders, and fibromyalgia are some chronic conditions that can cause or worsen tinnitus.
Its important to note that in many cases, an exact cause of tinnitus is never found.