14 ~ 15歲 男仔,,陰莖起扯旗果陣幾長先為之正常,同埋唔扯旗果陣,幾長先為之正常

男仔15的大約有幾長

Flaccid唔扯旗果陣--2-3.5 inches

erect 扯旗果陣 3.5 inches to 5.5 inches

depend on puberty ststus



REFERENCE OF PENILE SIZES

see http://en.wikipedia. org/wiki/Penis_lengt h#Data for range of sizes

Size at birth

Average stretched penile length at birth is about 4 cm, and 90% of newborn boys will be between 2.4 and 5.5 cm (0.9 and 2.2 in). Limited growth of the penis occurs between birth and 5 years of age, but very little occurs between 5 years and the onset of puberty. The average size at the beginning of puberty is 6 cm with adult size reached about 5 years later. W.A. Schonfeld published a penis growth curve in 1943.





Erect length



Academic and Scientific Studies



A study published in the September 1996 Journal of Urology concluded that average erect length was 12.9 cm (5.0 in).

A study published in the December 2000 International Journal of Impotence Research found that average erect penis length was 13.6 cm (5.35 in), (SD = 1.7 cm (.67 in), n = total participants = 55, measured by staff).

Ra



A study conducted by LifeStyles Condoms during 2001 Spring Break in Cancún, Mexico, found an average of 14.9 cm (5.9 in) with a standard deviation of 2.1 cm (0.8 in). (Measured by staff)

Self Measurement Surveys



An Internet survey performed by Sizesurvey.com found an average of 16 cm (6.4 in). (measured by Internet survey respondents)

An Internet survey performed by Jackinworld.com found an average of 15.6 cm (6.1 inches). (measured by internet survey respondents)



Erect circumference





A study conducted by LifeStyles Condoms during 2001 Spring Break in Cancún found an average of 12.6 cm (5.0 in) with a standard deviation of 1.3 cm (0.5 in). (Measured by researchers)



Flaccid length

Length of the unencumbered flaccid penis is not necessarily proportional to size of the erect penis. Blood flow from arousal, and its relationship to the subsequent length measurement of the now erect penis varies widely among men. Hence a smaller than average flaccid penis might grow to five times its flaccid length and twice its girth, or conversely a flaccid penis on the larger side might only grow to 1.5 times the length when filled with blood. The transition to erection and its relationship to measurements is by no means a one size fits all equation.



A study published in the September 1996 Journal of Urology concluded that mean flaccid length was 8.8 cm (3.5 in). (Measured by staff)

Low temperatures affect the size of the flaccid penis. One general physiological response to cold is decreased circulation of blood to the extremities, which includes the external genitals. The penis will often shrink further as a result. The slang term shrinkage, which was largely popularized by the 1994 episode "The Hamptons" of the NBC sitcom Seinfeld, is sometimes used to describe this phenomenon

參考資料:

http://en.wikipedia. org/wiki/Penis_lengt h#Data


參考資料:
http://en.wikipedia. org/wiki/Penis_lengt h#Data

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I got a great idea mate~!!!!
cut it off..
and show it to ur boiology teacher..
he/she can help u i bet~!!!!!

有冇病@@...你自己用把間尺讀下...都唔知你條野幾long