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>Black men had significantly lower semen volume, sperm concentration and total motile sperm counts than White and Hispanic/Latino men.
>The three groups did not differ in BMI, history of urogenital disease or smoking status (data not shown). Semen parameters were very similar between Hispanic/Latino and White men, but Black men had significantly lower values for semen volume and sperm concentration. Percent motile sperm was also slightly lower in Black men, although the difference was not statistically significant. >Consequently total sperm count and total motile sperm count were almost 50% lower for Black men compared to men in the other two groups (P<0.0001).
>A study of 253 men from Tanzania found that the average stretched flaccid penis length of Tanzanian males is 11 cm (4.53 inches) long, smaller than the worldwide average, stretched flaccid penis length of 13.24 cm (5.21 inches), and average erect penis length of 13.12 cm (5.17 inches).
>The three groups did not differ in BMI, history of urogenital disease or smoking status (data not shown). Semen parameters were very similar between Hispanic/Latino and White men, but Black men had significantly lower values for semen volume and sperm concentration. Percent motile sperm was also slightly lower in Black men, although the difference was not statistically significant. >Consequently total sperm count and total motile sperm count were almost 50% lower for Black men compared to men in the other two groups (P<0.0001).
>A study of 253 men from Tanzania found that the average stretched flaccid penis length of Tanzanian males is 11 cm (4.53 inches) long, smaller than the worldwide average, stretched flaccid penis length of 13.24 cm (5.21 inches), and average erect penis length of 13.12 cm (5.17 inches).
