Professionals only please. As far as I know I have not been exposed to blasts or excessive loud noise on that side. I have tinnitus. My hearing loss is severe in high frequencies (65 Db). I have some neural damage in that ear (25 Db in high freq.). My right ear is fine (20 Db). I am 40, male, and have developed hearing loss and tinnitus gradually. Loud noises bother me. I have trouble with conversations in noisy places. As a child I had measles which may be relevant in some types of hearing loss. After visiting a hearing test, I was directed to a specialist. After reading on the internet, I am for the first time taking my hearing loss seriously. In fact, I am worried. What is the most probable cause of my hearing loss? It's only in my left ear. What would still be common causes? Noise/environment? Otosclerosis? Acoustic neuroma? Are acoustic neuromas in fact extremely rare? I chose to deliberately wait until after Christmas. 6 more days… Is it still most likely noise?