A study of penis size from 1942 to 2021 found that the average erect penis length has increased significantly over the past 30 years, but the number of untreated genitals has remained the same. This may seem strange. But researchers say it could be due to chemicals interacting with hormones. Let’s look at the details together.

The new study analyzed data from 55,761 men from different geographic regions of the world. The study also included earlier studies from 1942 to 2021.

Although growth of erect penises was not observed, a significant increase in the height of erect penises was seen. The team that did the work “The duration of erections has increased significantly over time in various parts of the world and in all age groups” he decided. “After adjusting for geographic region, subject age, and subject population, erect penile length has increased by 24 percent over the past 29 years.”

This means that the average penis length has grown from 12.3 centimeters to 15.2 centimeters in a short period of time.


Scientists believe that penis sizes should be compared due to other changes in male reproductive health in recent years, such as a decrease in sperm count. For this reason, the aforementioned meta-analysis was carried out. Michael Eisenberg Professor of Urology at Stanford Medicine “Given trends in other indicators of male reproductive health, we thought there might be a decrease in penis length due to the same environmental exposure.” said.

Exposure to chemicals such as pesticides or hygiene products can affect our hormonal system.


In today’s world, we often encounter these endocrine disrupting chemicals in the environment and in food. According to the professor, when we change the structure of our body, our hormonal environment also changes. In other words, the chemicals we are exposed to in everyday life may have caused this change in the male reproductive organs.

According to scientists, changes are happening very quickly


Mentioning that such a rapid change indicates powerful events taking place in the body, Eisenberg said: “We should try to confirm these findings and, if there are any, determine the cause of these changes.” said.

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