There are internal and external male genitalia, and the only parts that we can see and describe how big they are are the external genitalia, which we know as the penis and scrotum. As the main “front-line fighting organ”, the size of the penis receives more attention than the scrotum! According to relevant research data, the Chinese adult penis length and girth norm shows that the 5% percentile values for natural weak length, girth and full erect length and girth are 5.84cm, 6.69cm, 10.30cm and 10.37cm respectively, while the 95% percentile values are 9.31cm, 9.41cm, 13.51cm and 11.20cm respectively. In other words, more than 95% of adult males in the “resting state” have a length greater than 5.84 cm, and only 5% of males may reach 9.31 cm; while more than 95% of adult males in the “fighting state” have a length greater than 10.30 cm, and may reach or exceed 13.20 cm. In contrast, more than 95 percent of adult men have a length greater than 10.30 cm in the “fighting state”, and only about 5 percent of men may reach or exceed 13.51 cm. So all together, as long as the weakness of more than 5cm, erection when more than 9cm is normal, is completely “up to standard”. Of course, this is not a completely absolute value, as Professor Jiang Hui, the chairman of our male branch, once said, “Generally speaking, as long as the erection exceeds 8cm, it is enough”. Because the distribution of neurons in women’s vagina is mainly concentrated in about 3~4cm inside the vagina, i.e. the further in the vagina, the less sensitive it is, so if you poke harder, without rich neurons, the pleasure will be just a little bit. So, don’t just pursue the length, and there’s no need to fret about the length of your penis. In addition, can you be sure that the length you measure is really accurate? So, how exactly is the measurement correct? First, hold the top with your thumb and index finger at the coronal groove and lift it flat so that it is fully extended. Second, use the ruler to hold it against the pubic symphysis at the root, which is where the root of the penis is located, and measure the length from the outer urethral opening to the root. Finally, take a silent glance at the number, and this is the true length of your penis. In fact, instead of pursuing the length, it is really better to get the hardness. Because only if the penis is really hard, sex life will be more harmonious! Of course, this hardness is also divided into levels: one just like tofu, not much use; two comparable to peeled bananas, just look; three bananas with skin, perfectly fine; four upgrade cucumber, the best state! Finally, do not forget the scrotum, because the scrotum is put in the main testicles “balls”, the size of the scrotum, largely determined by the size of the balls, and the weight of the adult balls in about 10-15 g. But because the testicles are afraid of heat, the skill point is heat expansion and contraction, so in the summer, it looks bigger, and in winter when shrunken, it will look smaller. The last thing I want to say is that size is not the only indicator to judge normal, size + the presence of pain, discomfort, etc., is what should be the focus of attention!