How to measure the size of male private parts (sex knowledge adult novel)

Several methods for measuring testicle size The testicle is located at the lower end of the spermatic cord, wrapped in the scrotum, with one on each side, and a slightly flattened oval body. Generally, the right side is about 1 cm higher than the left side, slightly larger than the left side, and has a harder texture. Generally speaking, the ratio of testicle to body weight is 0.076%, and the size of the testicle depends on the difference in the length and number of the seminiferous tubules. In order to let more people understand this common sense, several commonly used detection methods are selected below:
Caliper measurement method: This method is not limited by conditions and the results are more accurate, but it is more time-consuming. When measuring, use a caliper to measure the long diameter, wide diameter, and thick diameter of the testicle, and then calculate the volume of the testicle according to the formula. Testicular volume (cm3) = long diameter (cm) × wide diameter (cm) × thick diameter (cm) The testicular volume measuring device is made into oval hard objects shaped like testicles of different volumes according to the pre-calculated volume. They are numbered 1 to 25 according to size. When measuring, the testicle is pulled up, the scrotal skin is tightened, and the measuring piece (i.e. testicular model) is compared one by one next to the testicle. The volume of the measuring piece that is similar in size to the testicle can be regarded as the testicular volume. This is an internationally accepted method for measuring testicular volume. The testicular volume (including scrotal skin) of normal adult males in my country ranges from 15 to 25. Displacement method This is an older method. When measuring, pull down the testicle to be measured, take warm water (about 25℃) and place it in a container with a scale, so that the pulled down testicle is completely submerged in the water. The increase in milliliters of water after the testicle is immersed is used as the volume of the testicle, which is now rarely used. It is also reported that a survey of healthy men aged 23 to 45 with a normal reproductive history in my country showed that the average length, width, and thickness of the left testicle were 3.0, 2.5, and 2.1 (cm), respectively. The average length, width and thickness of the right testicle were 4.0, 2.4 and 2.2 (cm), respectively. There was no significant difference in the volume of the left and right testicles between fertile and infertile men. Since the testicular volume of normal men varies greatly, and the testicular volume on both sides of the same individual also varies to a certain extent, the measured results can only be used as a reference. The judgment of testicular development and fertility should be combined with the results of other examinations for a comprehensive analysis.