Why does the penis shrink?

When an adult male's sexual desire comes, the penis begins to slowly grow larger and eventually becomes hard for a long time. When the sexual desire subsides, it begins to slowly shrink. This is a normal reaction. It is not that the penis shrinks naturally. It depends on the state of the penis. In addition, the size and length of the penis are standard.

The penis is more elastic, more sensitive to stimulation, and more responsive to temperature. When exercising, the penis is usually in a state of contraction because the mind is focused on the exercise. If the erection is normal, it should be normal.

Size

The scientific way to measure penis length is from the pubic bone to the glans penis.

There are two methods commonly used by doctors:

1. Measurement of non-erect penis length: At room temperature of 18°C, stand upright, lift the penis to 90° with the body, and use a ruler to measure the length from the pubic symphysis above the penis to the top of the glans penis.

The International Men's Health Organization (MTD) has developed a formula for calculating whether the penis size is normal (Asia) through nearly 30 years of research:

Normal penis length M = (height T-105) * 0.618/3.14 (cm) Normal penis diameter D = M/3.14 (cm) (Europe and America = Asia/1.414/0.618)

centimeter

The above formula is only calculated based on most statistics. Actual data proves that penis length has nothing to do with height. The size of the penis is more closely related to race and genetics.

A study of animals around the world shows that the size of the penis of male mammals is related to the geographical environment they live in. Animals at different latitudes have different mating methods due to different environments, which leads to different penis sizes. Male animals living in cold regions have larger penises in order to complete mating more smoothly and facilitate reproduction.

Steven Ferguson from the Winnipeg Freshwater Research Institute in Canada and Sage Larrivier from the Delta Waterbird Foundation both said that a large sex organ is directly related to the geographical environment in which an animal lives. Compared with animals living in warmer climates, male animals in high latitudes have a greater advantage in having a larger penis.

The researchers collected data on the size of the penis bones of 122 mammals from around the world. They then studied whether the size of the animals' penises had some relationship with factors such as the temperature and latitude of the area where they lived.