| S. No. | Possible Cause |
|---|---|
| 1. | Age-related hearing loss |
| 2. | Noise-Induced hearing loss |
| 3. | Ear blockages and head congestions |
| 4. | A severe injury in the head-neck region |
| 5. | Temporomandibular Joint Disorder (TMJ) |
| 6. | Nasal Congestion and other causes for abnormal pressure build-up in the middle ear |
| 7. | Traumatic brain injury |
| 8. | Consumption of ototoxic drugs |