Their are four types of Hearing Lose
1) According to Age onset
2) According to Nature
3) According to degree
4) According to Type
✅ 1) According to age on set :-
1. Congenital Hearing Lose
2. Acquired Hearing Lose
1. pre lingual H.L
2 .post Lingual Hearing Lose
✅ 2) According to Type :-
1.Conductive Hearing Lose
2. Sensory Neural Hearing Lose
3. Mixed Hearing Lose
✅ 3) According to Degree :-
1) Acc to good man -
0db - 15 db = Normal Hearing sensitivity
16db - 25 db = Minimal Hearing Lose
26 db - 40 db = Mld H/L
41db - 55 db. = Moderate H/L
56 db - 70 db = Moderate sever H/L
71 db - 90 db = sever H/L
91 db - 120 db. = profound Hearing Lose
. 2) Acc to WHO :-
Normal = 0db - 25 db
Mild = 26 db - 40 db
Moderate = 41 db - 55 db
Moderately Sever =56 db - 70 db
Sever = 71db - 90 db
Profound = 91 db -120 db
✅ 4 ) According to Nature :-
1) Suddenly Hearing
2) Progressive Hearing lose
