How many people have hearing loss?

Over 1.5 billion people, about 20% of the world, have some degree of hearing loss, and about 430 million have loss severe enough to need rehabilitation. WHO projects that by 2050 nearly 2.5 billion people will have some hearing loss and 700 million will need care. Over a billion young people are at risk from loud recreational sound.

Source: WHO World Report on Hearing (2021)