The average global penis length has grown by almost 25% throughout the last 29 years.
In the new study, researchers from Stanford University looked at 75 separate studies that were published between 1942 and 2021 which reported on the penis length for 55,761 men.
According to the study, the average length of an erect penis has grown in size from 12.1 centimetres to 15.24 centimetres, an increase of 24% in nearly 30 years.
