Man is an advanced mammal, which even the children in the older classes understand. What is it about people that is so advanced? As a urologist, it seems nosy to ponder this question. Many years ago, the second brother gave me a book called “THE NAKED APE” (naked ape), the general idea is that people do not take themselves too seriously, in fact, we are hairless monkeys, human social behavior is “based on the development of animal instinctive behavior”. The book talks about sex, eating, parenting, etc., but not about urination. In fact, human urination behavior is very different from that of other mammals. Let’s start with a few familiar ones. Woofers (actually, I want to express canines ……) urinate very distinctively. When the dog is small pee but moderate, but when the male dog grows up will like to use urine everywhere to do mark, to show that territorial sovereignty can not be violated. In fact, the woofers discharged in addition to urine, but also includes the secretions inside the foreskin glands, so that a strong smell can be released as a marker. Even when there is no urine in the bladder, the woofers will lift their hind legs in a dashing manner to do a urination action. This behavior was common among their ancestors, the wolves, and is gender-neutral. Meowers (yes, I mean felines ……) tend to urinate not in a line, but in a spray, which is actually a domain marking behavior. In addition, male meowers can actually urinate with their penises to! Back! Bend! That’s right, 360 degrees around the three-dimensional urination, where you want to pee, is it cool! It’s cool! I saw someone ask this question on Baidu, is also drunk! This buddy’s observation and insight is too strong …… In addition, when the male meow smells the female’s urine, he will also make a very cute expression: upper lip raised, revealing teeth, wrinkled nose, eyes confused …… Do not think it is cute, in fact, this is the urine inside This is actually the result of the sex hormones in the urine, the scientific name is Flehmen reaction. What’s more, the male tiger can tell if the female is pregnant by smelling the urine! It saves you from having to buy test strips on Taobao! More amazing things are yet to come. The American scientist of Chinese descent, Lao Hu, who loves to go to the zoo, looked at it and saw the way, saw the big deal …… Lao Hu wrote a paper in the Proceedings of the National Academy of Sciences (which is a very prestigious magazine), revealing a horrifying “law of urination “: Mammals urinate for 21 seconds regardless of gravity, size, weight, height or sex! I have the urge to take the phone to the toilet timing In fact, this thing is not quite accurate in humans. Otherwise, we do not have to wait in such a long line to go to the toilet in the cinema. Back to the subject, let’s see how the “apes” pee! Human urine control is a very complex system, involving many systems and organs throughout the body, any one of these links out of order, will affect the normal urination and urine control behavior, due to the social nature of man, these processes are gradually complicated by social factors, cultural factors, and therefore, the formation of a unique human urination behavior. So, what is the process of urine production and excretion in normal healthy adults? Urine (the product) is first produced by the kidneys (the workshop), then passed through the ureter (the conveyor belt) to the bladder (the warehouse) for storage, and if the time and place are right (the pro has placed and paid for the order), the urine is excreted through the urethra (the logistics). How the bladder controls urine The bladder has many internal receptors, which are connected to many nerves, which are connected to the spinal cord, and there are also higher centers of the brain that can functionally regulate the bladder. For example, if the bladder is the price of housing, there is a level of government at the top that can regulate the price of housing, can not be arbitrary up, nor let randomly down. Once the top level has given the word, the bottom will have to respond, right? In fact, each level has its own way of regulation. But then, all levels of government may not always be able to get the bladder to do what it wants, because there are many other factors that affect and constrain it. When a person is an infant, or unfortunately has a spinal cord injury, the regulatory centers of the brain do not play a role in controlling urination; in other words, the person cannot control urination according to his or her wishes and whether or not the surrounding environment allows it. In addition, when there is severe diabetes, the bladder is completely anarchic due to peripheral neuropathy. There are also many diseases that can affect urination, such as stroke and Parkinson’s disease ……. The whole process of urinary control is divided into the storage period, the voiding period and the late voiding period. If there is a problem in the urinary storage period, it will show up as frequent urination, urgent urination, increased nocturia, and in severe cases, urinary incontinence, which is also known as “inability to hold it in”. If there is a problem during the urination period, there will be waiting for urination, straining to urinate, bifurcation of urine, intermittent urination, thin urine flow, etc. In serious cases, it is even “unable to urinate”. What are the problems in the late stage of urination? You may have the feeling of not being able to urinate cleanly, or you may have dripping after urinating. If you find a problem, you should track down the cause of the problem and find a solution for each symptom. So, how do you know if there is a problem with your urinary system? First, please recall the past month; then, I will ask you 7 questions; then, you will give a score for each question; remember, each question has a maximum of 5 points and a minimum of 0 points; scoring criteria: the worse the situation, the higher the score. 1.Do you often have the feeling that you can’t finish urinating? 2.Do you often have to urinate again within two hours after urinating? 3.Do you often have an intermittent flow of urine during urination? 4.Do you often find it difficult to “hold your urine”? 5.Do you often have symptoms of weak urine flow? 6.Do you often need to strain to start urinating? 7.How many times do you wake up at night to urinate? Did you calculate the number?