They only measure adults and not flaccid penises. When flaccid it's for peeing only so if you can do that you're fine.
15 - 10 inches long and 7 inches in girth erect, 7.5 inches long flacid.
At that age is probably finished growing, but 4" flacid is actually around average.
It is if its flacid.
you're either really fat or have a fat pad around your mpenis or you just have a small penis, is it 2 inches flacid or hard? be more specific next time.
Chop it off and start a double life as a woman.
No that is well above the average.
Depends on whether your penis is erect or flacid. Also, if you are Chinese I wouldn't worry - you're ahead of them in terms of penis size.
10 inches.
7 inches
The average length of an erect adult penis is 6 to 7 inches but the range of sizes that is considered to be normal is anything from 2 inches or so right up to 10 inches or more. The longest length claimed in a survey on human sexuality was 14 inches but there was no evidence to back this claim up. The longest penises for which there is reliable evidence is 12 inches.
2 inches
Viagra. or ask your doctor