Common age for otosclerosis is:: (A) 5-10 years, (B) 10-20 years, (C) 20-30 years, (D) 30-45 years
Answer is C. 50% of patients of otosclerosis have positive family history.Females are more commonly affected than males. Whites are affected more than negroes.Age = most common between 20-30 years and is rare before 10 and after 40 years.Deafness is increased by pregnancy, menopause, trauma and major operations.Viruses like measles virus have also been associated with it.