The cause of otosclerosis is still unknown. However, otosclerosis tends to run in families, and may be hereditary. Otosclerosis has also been linked to hormonal changes, especially pregnancy, and viral infections.
A risk factor is something that increases your chance of getting a disease or condition.
Risk factors for otosclerosis include:
- Age: late teens through late 40s
- Family history of otosclerosis
- Sex: female
- Race: Caucasian or Asian
- Drinking nonfluoridated water: Some studies suggest that nonfluoridated water may cause a susceptible person to develop otosclerosis
- Pregnancy: may accelerate symptoms