Fact check: Average penis size among Nigerian men

1. Summary of the results

The average penis size among Nigerian men is a topic of discussion, with various studies providing different measurements. According to a study, the mean flaccid penile length (FPL) and stretched penile length (SPL) for men less than 50 years were 9.8 ± 2.7 and 10.6 ± 2.2, while for men above 50 years, the mean FPL and SPL were 13.0 ± 2.9 and 14.1 ± 2.1, respectively ^[1]. Another study found a mean stretched penile length of 13.37 cm in 115 Nigerian men ^[2]. However, it is essential to note that these studies may have different sample sizes, age ranges, and methodologies, which could affect the results. For instance, a study found that the mean stretched penile length of men who declared themselves as black skin color was 16.5 cm, while the mean stretched penile length of men who declared themselves as white skin color was 15.8 cm, with a statistically significant difference between the two groups ^[2].

2. Missing context/alternative viewpoints

Some studies provide information on penile length in relation to age, with men above 50 years having a higher mean FPL and SPL compared to men less than 50 years ^[1]. However, other factors such as gluteal size and physique may also be relevant, as a study found a significant direct correlation between penile length and gluteal size ^{[2] [3]}. Additionally, a study established normal reference values for penile size in Nigerian newborn boys, with a mean penile length of 3.4 ± 0.48 cm ^[4]. It is crucial to consider these alternative viewpoints to gain a comprehensive understanding of the topic. Furthermore, a study that does not provide information about penile length, but rather about urethral length, is not relevant to the claim about average penis size among Nigerian men ^[5].

3. Potential misinformation/bias in the original statement

The original statement lacks specific information about the average penis size among Nigerian men, which could lead to misinformation. The statement does not provide context about the age range, sample size, or methodology of the studies, which is essential to understand the results ^[1]. Additionally, the statement does not consider alternative viewpoints, such as the correlation between penile length and gluteal size or physique ^{[2] [3]}. The studies that provide information on penile length may benefit researchers and medical professionals who are interested in understanding the average penis size among Nigerian men, while the general public may benefit from a more comprehensive understanding of the topic, including the factors that affect penile length ^{[2] [3]}. However, it is essential to be cautious of potential biases in the studies, such as selection bias or measurement errors, which could affect the results ^[1].