how big is it really?

BBC has a bump



HOW PENIS SIZE SHOULD BE MEASURED
In short, penis girth is measured in the middle of the shaft and the length is measured by pressing a ruler against the pelvic bone above the penis, at the base, and measured from the base to the tip of the glans (also known as the head). This correct way has been considered as standard and therefore it was used to compute the averages and ranges to achieve consistency.

ETHNICITY AND AVERAGE PENIS SIZE:
There appears to be a difference between the findings for different ethnicities, therefore it makes sense to narrow down the penis size averages by ethnicity. However, Chen, Li, Yang, and Dai conducted an excellent study in China, in Yunnan province (known for its ethnically diverse populace) in 2014. They discovered, in very thorough research that even among the local ethnicities the averages of penis sizes varied.

If this is true for people in one country, in one province, of one race and one nationality, it is reasonable to suggest that there is a major variation of penis sizes for different ethnicities. However, since the world today is a melting pot and has been thus for the last few centuries, the averages should be flattening out. However, to have a general idea of what is normal/average penis sizes for different ethnicities, we can use the mathematical principles of the mean and standard deviation to assess the ranges of penis sizes for different ethnicities.

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