Many female friends have probably seen this phenomenon in movies and TV shows: after a man finishes urinating, he always gives a little shake before zipping up. If you're a male friend, you're probably all too familiar with this "shake after peeing" scene. But after shaking for so many years, aside from knowing it feels good, do you know why men shake after urinating?
Why do men suddenly shake after peeing?
The medical term for this post-urination body tremor is "post-micturition convulsion syndrome," commonly known as the "pee shiver." In fact, it's a normal physiological reaction, an inherent physiological function and conditioned reflex in men.
Here are a few possible reasons for this shaking phenomenon:
1、Heat Tremor
Everyone knows what a cold shiver is, but what about a heat tremor? It's when the body suddenly loses a portion of its heat and generates new heat through muscle tremors to maintain a constant body temperature. We all know that urine has a certain temperature, especially in winter when freshly expelled urine can produce steam. Thus, during urination, some body heat is lost, leading to a shaking reaction.
2、Penis Stimulation
It's often said that men think with their lower half, which highlights the sensitivity of the male genital area. The end of the penis is densely packed with nerves, and during urination, it's inevitable that some nerves will be stimulated, potentially causing an involuntary shake.
3、Muscle Twitch
Many people have experienced a sudden body jerk just as they're about to fall asleep. This jerk can occur when the body transitions from a tense state to a relaxed one. Similarly, before urination, men are in a state of holding it in, which is quite tense. Once they finish urinating, their muscles relax immediately, triggering a natural response in the nervous system and resulting in an involuntary shake.
4、To Ensure Complete Urination
As the saying goes, "A shake ensures cleanliness." This is a common understanding among men. Men are very particular about personal hygiene; having an "accident" not only damages their pride but can also lead to reproductive system or anal diseases, which would be a greater loss. Therefore, it's become a habit for men to shake after urinating.
5、An Imitated Habit
Many people might have seen similar scenes in movies and TV shows from a young age. Humans have a strong capacity for imitation, often mimicking others' behaviors consciously or unconsciously. Especially under the influence of media and celebrities, it's easy to develop a mimicry mentality. This suggests that some men's shaking behavior might just be an imitated habit.
