"Oversized" Penile Length In The Black People; Myth Or Reality

Guy White "logic": reporting on an incident of bestiality which he asserts "does carry several stereotypes", one of the first three things that comes to guywhite's mind is: "This Black guy must be enormous down under to be able to do it with a horse." Reality:

“Oversized” Penile Length In The Black People; Myth Or Reality
JC Orakwe, GU Ebuh
Abstract
Objective: Amongst the Caucasians and some non-Black races, there is the popular belief that the black people generally have longer penile sizes. Even the Blacks themselves tend to believe so. This study was carried out to test the veracity of this ascription of “oversized” penile length to people of the Black (Negro) race.
Design: A prospective and comparative study
Setting: The Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria.
Subjects and Method: Full-stretch flaccid penile lengths, and flaccid penile lengths, were measured in 115 adult men of the Black race in Nigeria. The results were compared with reported similar main studies on people of other races, which were accessible to the authors. These studies were done in Italy, Greece, Korea, Britain, and the United States of America.
Result: The mean full-stretch penile length of the Nigerian Blacks was 13.37cm and the mean flaccid length was 9.36cm. Similar studies reported full-stretch penile lengths of 12.50cm in Italians, 12.18cm in Greeks, 9.6cm in Koreans, 13cm in British Caucasians [note: the number reported for the British sample is actually the median, and is identical to the median for this Nigerian sample], and 12.45cm in the American Caucasians [note: this sample actually includes Asians, blacks, and whites]. The penile length for Nigerian Blacks was longer than those of the other races, but the differences were only statistically different in comparison with the Koreans.
Conclusion: There is the possibility of racial differences in penile sizes, but there is no convincing scientific background to support the ascription of bigger penile dimensions to people of the Black race
Keywords: Penile Length, Black Race, Penile Size
Tropical Journal of Medical Research Vol. 11 (1) 2007: pp. 16-18

[. . .] The observed longer flaccid penile length particularly may be partly responsible for the apparent impression that the Blacks have bigger penile dimensions. It is know that the flaccid penis is deformable extensible and elastic, and influenced by variations in ambient temperatures, and also by fear and anxiety. This influence may be due to the effect of these factors on the Dartos muscles, which contract in low temperature and in state of fear and anxiety, and relax in high temperatures. Native black environments have high ambient temperatures. Photographs taken in these environments may depict an apparently longer penile length in the flaccid state and this may erroneously be extrapolated to the erect state. We believe that most impressions of the "oversized" penile lengths in the blacks are derived from such pornographic photographs. This however may not be all the reason. Edward in the result of his survey of definitive penile size published on-line, observed that the average flaccid penile length of the black Americans was shorter compared to that of the American Caucasians, but that the average erect length of the American Caucasians was surprisingly longer. Since the comparison was done in the same environment, other factors may be contributory to the observed longer flaccid penile length in the blacks.

Related posts [updated 5/2015]:

• Racial and ethnic variation in penis size, pt. 1: some background
• Racial and ethnic variation in penis size, pt. 2: the actual data
• Rushton and genital size: one more time
• Can racial differences in circulating testosterone explain racial differences in crime?