Sensorineural hearing loss typically progresses at a rate of 1 dB/year (Sakihara and Parving, 1999). Later on, a conductive pattern of hearing loss appears. The conductive type of otosclerosis usually progresses up to a maximum in the 30's. After this, it rarely progresses.

Can otosclerosis progress quickly?

There are some patients who experience a rather rapidly progressive hearing loss with otosclerosis. Pregnancy can accelerate the otosclerosis process, thus accelerating hearing loss. Generally, otosclerosis begins in one ear. About 60% of the time, the other ear may become involved.

When does otosclerosis develop?

Age: It usually starts when you're young. You can develop otosclerosis between the ages of 10 and 45, but you're most likely to get it during your 20s. Symptoms usually are at their worst in your 30s. Genetics: It often runs in families.