As of 2019, roughly 1.57 billion people globally had hearing loss, which is defined as having difficulty hearing sounds softer than 20 decibels (dBs) or more.
This statistic shows the number of people with hearing loss worldwide as of 2019, by severity.
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Lancet. (March 13, 2021). Number of people with hearing loss worldwide as of 2019, by degree of hearing loss (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 21, 2026, from /statistics/1235654/cases-hearing-loss-by-severity-worldwide/
Lancet. "Number of people with hearing loss worldwide as of 2019, by degree of hearing loss (in millions)." Chart. March 13, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 21, 2026. /statistics/1235654/cases-hearing-loss-by-severity-worldwide/
Lancet. (2021). Number of people with hearing loss worldwide as of 2019, by degree of hearing loss (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 21, 2026. /statistics/1235654/cases-hearing-loss-by-severity-worldwide/
Lancet. "Number of People with Hearing Loss Worldwide as of 2019, by Degree of Hearing Loss (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 13 Mar 2021, /statistics/1235654/cases-hearing-loss-by-severity-worldwide/
Lancet, Number of people with hearing loss worldwide as of 2019, by degree of hearing loss (in millions) ÌÇÐÄÆƽâ°æ, /statistics/1235654/cases-hearing-loss-by-severity-worldwide/ (last visited July 21, 2026)
Number of people with hearing loss worldwide as of 2019, by degree of hearing loss (in millions) [Graph], Lancet, March 13, 2021. [Online]. Available: /statistics/1235654/cases-hearing-loss-by-severity-worldwide/
