I am on the Noise Committee for the American Industrial Hygiene Association. Tinnitus is mostly associated with high noise exposure, such as a high frequency from helicopters with two jet engines overhead (source of my tinnitus). From diving, I think it is possible to get tinnitus from a low-grade decompression sickness situation too, but I"d check with DAN (the Diver's Alert Network) for that. Dive boats may have high noise levels too from their engines. Head injuries could also be a source of tinnitus.
This comes from the inner ear, where the cochlea resides. If you look at a diagram of the ear (from a presentation I made on noise and it's affects on a person), it is the inner ear, where the cochlea resides, that is the site of tinnitus (ringing of the ears). An infection in the middle or outer ear is unlikely to cause tinnitus (but doesn't mean it cannot happen). So if the round and oval windows are intact, and the ear drum is intact, the likelihood of tinnitus is small. But if high noise has been experienced, it can happen.
Where do we get noise exposure? Well, noise is pretty endemic in our modern world. I mentioned motor noises (from helicopters and boats), but the Dangerous Decibels Program has really focused on environmental noise, and also noise from our various devices that we use daily. We now have earphones that we use for a long time, and if those are set too high, you can get hearing damage and tinnitus. Take a look at the link, and see whether you have inadvertently been overexposed to noise.
SeaRat
This comes from the inner ear, where the cochlea resides. If you look at a diagram of the ear (from a presentation I made on noise and it's affects on a person), it is the inner ear, where the cochlea resides, that is the site of tinnitus (ringing of the ears). An infection in the middle or outer ear is unlikely to cause tinnitus (but doesn't mean it cannot happen). So if the round and oval windows are intact, and the ear drum is intact, the likelihood of tinnitus is small. But if high noise has been experienced, it can happen.
Where do we get noise exposure? Well, noise is pretty endemic in our modern world. I mentioned motor noises (from helicopters and boats), but the Dangerous Decibels Program has really focused on environmental noise, and also noise from our various devices that we use daily. We now have earphones that we use for a long time, and if those are set too high, you can get hearing damage and tinnitus. Take a look at the link, and see whether you have inadvertently been overexposed to noise.
SeaRat