Penis 11cm is normal, the vast majority of Chinese people’s penis is between 10-14cm. The normal standard for the penis, as long as the length after erection is greater than 7cm this is normal. If the length of the penis after erection is greater than 16cm, this is the penis is too long. As long as the penis is greater than 7cm after erection, it can be inserted normally into the vagina of women during sex and can complete the process of sexual intercourse, and this situation can be normal fertility. Do not think that 11cm penis is not normal, this length of penis as long as you can erect normally, is normal, do not do further thickening growth of the processing work.