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Do men lose size as they age? The truths about penile shrinkage

According to urologists, the average erect penis size is 12.9 cm (5.1 inches), but it's a common concern that size diminishes with time. Many men wonder, do men lose size as they age, and what causes these changes? While some age-related changes are natural, several lifestyle factors and medical conditions can also contribute to a perceived or actual reduction in penile size.