# Race and penis size

A systematic review of 15,521 men from 20 studies found "no indications of differences in racial variability.
According to Aaron Spitz, a urologist, many websites and studies promoting variation of penis size between races use unscientific means of collecting information and often ignore contradictory evidence. He concludes that "when you really take a good look at the naked data, there's not a whole lot there [showing racial variation in penis size]."
Alleged differences in races have led to the creation of sexual myths. There is no scientific background to support the alleged 'oversized' penis in black people.
A study of 115 men from Nigeria found the average stretched penis length of 13.37 cm (5.26 in), and the median stretched penis length of 13 cm (5.1 in).
A study of 14,597 Vietnamese men found an average stretched penis length of 14.67 cm (5.78 in) and an average flaccid penis length of 9.03 cm (3.56 in), as well as an average non-aroused circumference, at the mid-shaft, of 8.39 cm (3.30 in).
A study of 109 Chinese men identified the average stretched penis length of 13.9 cm (5.5 in). Another study of 104 Chinese men found the average stretched penis length of 13.8 cm (5.4 in), and an average erect length of 13.5 cm (5.3 in). A study of 5196 Chinese men included a subgroup of 311 men that reported an average erect circumference of 10.5 cm (4.1 in) and average erect length of 12.9 cm (5.1 in).
A study of 702 Korean men aged 21 to 31 found the average erect penis length to be 12.7 cm (5.0 in) and the average non-erect length 8.0 cm (3.1 in). A study of 150 Korean men found the average flaccid penis length to be 8.26 cm (3.25 in), the average flaccid girth 8.34 cm (3.28 in), the average erect length 13.42 cm (5.28 in), and the average erect girth 11.17 cm (4.40 in). In another 1998 study of 287 Korean men, the average erect penis length was measured at 14.06 cm (5.54 in), and the average erect penis girth was 12.11 cm (4.77 in). A 2016 study of 248 Korean men identified the average flaccid penis length to be 7.39 cm (2.91 in) and the average erect penis length to be 13.53 cm (5.33 in).
A 2014 American study by Herbenick et al. measured 14.15 cm (5.57 in) in erect length and 12.31 cm (4.85 in) in erect girth among 1,661 American males (83% White, 9% Asian, 8% Other). No relationship between race and penile dimensions were found. The study involved sexually active Asian American, Black American, White American, Pacific Islander/Hawaiian, and Native American men, and found average racial differences in erect penile length and circumference to be generally less than one centimeter, with averages in length being: 14.14 cm (5.57 in) for Asian Americans, 14.66 cm (5.77 in) for Black Americans, 14.88 cm (5.86 in) for Pacific Islanders/Hawaiians, 12.86 cm (5.06 in) for Native Americans, 14.18 cm (5.58 in) for White Americans, and 13.79 cm (5.43 in) for Americans reported as "Other" race; with averages in circumference being: 12.10 cm (4.76 in) for Asian Americans, 12.29 cm (4.84 in) for Black Americans, 11.88 cm (4.68 in) for Pacific Islanders/Hawaiians, 11.36 cm (4.47 in) for Native Americans, 12.25 cm (4.82 in) for White Americans, and 12.03 cm (4.74 in) for Americans reported as "Other" race. Unlike previously cited studies, findings were based on self-reported measurements with participants using paper rulers and "detailed, illustrated instructions" to measure their erect penis.
Rumors about the penis size of Congolese men are often exaggerated and lack scientific reliability. According to research, there are significant issues with the accuracy of information disseminated on this topic. Most information sources, including radio and television broadcasts, failed to provide measurement methodologies or credible references, with 85.7% not specifying how measurements were conducted and 57.1% lacking bibliographical citations.