Fact check: Average penis size Nigeria

1. Summary of the results

Based on multiple Nigerian studies, the average penis size in Nigeria shows consistent measurements across different research populations:

Stretched penile length (the standard medical measurement):

• 13.37 cm in adult men with an average age of 42.3 years ^[1]
• 13.4 cm in another adult study ^[1]
• 13.7 cm in men from Southwest Nigeria ^[2]

Flaccid penile length varies significantly by age group:

• 9.8 cm for men under 50 years old ^[2]
• 13.0 cm for men over 50 years old ^[2]
• 10.3 cm overall average in Southwest Nigeria ^[2]

The studies consistently show a range of 7.5-19.5 cm for stretched length ^[1]. Research also found positive correlations between penile length and height ^[2] and an interesting correlation with gluteal size ^[1].

2. Missing context/alternative viewpoints

The original query lacks several crucial contextual factors that significantly impact penis size measurements:

• Age is a critical factor - Studies show men over 50 have significantly larger measurements than younger men, with flaccid length increasing from 9.8 cm to 13.0 cm ^[2]
• Measurement methodology matters - There's a substantial difference between flaccid measurements (8.6-10.3 cm) and stretched measurements (13.37-13.7 cm), with stretched length being the medical standard ^{[1] [2]}
• Population specificity - The studies focused on specific regions (Southwest Nigeria) and populations (medical students, urology clinic patients), which may not represent the entire Nigerian population ^{[2] [3]}
• Developmental considerations - Research shows genitalia size increases with age in younger groups, reaching adult size around 21 years old ^[3]

3. Potential misinformation/bias in the original statement

The original statement "Average penis size Nigeria" is overly simplistic and potentially misleading because:

• It fails to specify measurement type - Without distinguishing between flaccid and stretched measurements, the query could lead to misinterpretation of data that varies by 3-4 cm depending on methodology
• No age specification - Given that measurements differ significantly between age groups (up to 3.2 cm difference in flaccid length between under-50 and over-50 groups), the lack of age context makes any single "average" misleading ^[2]
• Lacks regional specificity - Nigeria is a large, diverse country, and the available studies primarily focus on Southwest Nigeria, potentially creating sampling bias ^[2]
• Missing sample context - Some studies used medical students or urology clinic patients rather than general population samples, which could skew results ^{[3] [2]}

The query's brevity obscures the complexity of anthropometric research and could perpetuate oversimplified comparisons that ignore important demographic and methodological variables.