A surprising new study suggests that the average penis length has increased by 25% over the last 30 years—and could keep growing. According to a Stanford University meta-analysis, the average erect penis length jumped from 4.8 inches in 1992 to 6 inches in 2021. If this trend continues, experts say it could surpass 8.5 inches by the century’s end.
Study lead Dr. Michael Eisenberg says such rapid change suggests something “powerful” is affecting human biology. But not all changes may be natural. The Daily Mail highlights a growing trend of biohacking—where technology enhances human bodies. Oxford Brookes University’s Simon Underdown predicts that future modifications could improve sperm motility or reshape reproductive traits based on social trends.
So, whether it’s nature or science, one thing’s certain: changes to the body—especially this one—are no longer just a topic for locker room talk.
