A new study from Stanford Medical School has found that the average size of an erect penis has increased by 24% over the past three decades. The study analyzed data from 75 studies involving 55,761 people between 1942 to 2021. The average length of an erect penis increased from 4.8 inches to six inches over a 29-year period.
However, medical experts are raising concerns over the declining sperm quality and testosterone levels in men. Professor of urology Michael Eisenberg believes that something powerful could be happening to our hormones, which could be linked to the increase in penis size. He suggests that chemicals from pesticides and everyday hygiene products could be to blame for disrupting hormone levels in our bodies. These chemicals could cause children to go through puberty at younger ages, which could affect genital development.
While some might see this news as a positive development, Professor Eisenberg cautions that significant changes in human development should be monitored closely. Doctors should also measure penises more regularly to determine if these changes are a cause for concern. If confirmed, further research should be conducted to identify the underlying cause of these changes.
The study’s findings are quite different from trends in other areas of male fertility and health. While erect penile length is getting longer, sperm quality and testosterone levels are declining. As Professor Eisenberg points out, it is crucial to understand the cause of these changes so that appropriate measures can be taken to ensure the health and well-being of men.