the human body needs water to function normally, so people drink water every day. In fact, water intake is not just the channel of drinking water. Like our daily
, how many urinations a day is normal? There is no fixed answer to this question, which mainly depends on water intake. Try to control it at about 5 times, whether day or night. When the kidney is normal, the volume of urine is about 2 liters. When you sleep at night, your kidneys store urine a little less than during the day. The liquid for each micturition is 200ml-300ml. The normal number of micturition per day is about 5 ~ 6 times, which is the number of micturition during the day. The number of urination at night, usually no urination or urination is 1.
see if you are within this range. If you have a lot of urine times every day, in serious cases, you have to go once every ten minutes, except that you have recently drunk diuretic ingredients or drank a lot of water at once.
The main reasons for not meeting these conditions are as follows:
1. Drinking a lot of water before going to bed
drinking water before going to bed is
. Factors affecting micturition
1. Age and gender infant micturition is caused by reflex With, without conscious control, can self-control after the age of 3. The elderly often have frequent urination due to the decrease of bladder tension; Elderly men compress the urethra due to benign prostatic hyperplasia. It often causes dripping and dysuria. During menstruation and pregnancy, the urination pattern of women also changes.
2. Diet and climate more water in food or a large amount of drinking water can increase urine output. Coffee, tea, wine and other drinks have diuretic effect. More sodium in food can cause * retention of water and sodium and reduce urine output. When the temperature is high, respiration increases, a lot of sweating and urine volume decreases.
3. Urination habit the time of urination is often related to daily work and rest, such as urination before getting up in the morning and going to bed. Urination posture and urination environment will also affect urination activities if they are not suitable.
4. Therapeutic factors such as diuretics can increase urine output; Anaesthetic * and postoperative pain resulted in postoperative urinary retention.
5. Disease factors damage to the nervous system can make the nerve conduction of micturition reflex, control micturition consciousness, and lead to urinary incontinence. Kidney disease can cause dysuria, resulting in oliguria or anuria; Urinary calculi, tumor, stenosis * can cause voiding dysfunction and urinary retention.
6. * psychological factors such as nervousness, anxiety and fear can cause frequent urination, urgency of urination or urinary retention due to inhibition of micturition. Suggestion can also affect micturition. For example, auditory, visual and sensory stimuli in other parts of the body can induce micturition.
Three pairs of mixed nerve trunks innervate the bladder and urethra. Each nerve has afferent and efferent nerve fibers, connecting the bladder and urethra with the nerve center regulating urination.
the efferent fibers of the inferior abdominal nerve
originate from the thoracic 12 ~ lumbar 1 and 2 lateral columns of the spinal cord, belonging to the sympathetic nervous system. Innervate bladder and internal urethral sphincter. It can conduct excitement to enhance the tension of internal urethral sphincter and weaken the tension of bladder detrusor, which is related to bladder urine storage function. Its afferent fibers conduct bladder pain.
pelvic nerve
its afferent fibers conduct the filling feeling of bladder and internal urethral sphincter. Its efferent fibers originate from the sacral 2 ~ 4 lateral columns of the spinal cord, belong to the parasympathetic nervous system, and dominate the bladder and posterior urethral sphincter. Its conduction of excitement can cause detrusor contraction and urethral sphincter relaxation, and promote micturition.
pudendal nerve
its afferent fibers transmit the sensation (including pain) of the posterior urethra. Its efferent fibers originate from the anterior horn cells of the sacral 2 ~ 4 segments of the spinal cord. They are somatic nerves, innervate the external urethral sphincter and the striated muscle of the perineum, and can cause the tension contraction of the external urethral sphincter. Prevent bladder micturition; When urinating, its tension and excitement are inhibited, so as to weaken the tension of the external urethral sphincter. Urine is driven by the detrusor and flows out of the body from the dilated urethra; During urination, you can consciously excite it and contract the external urethral sphincter to interrupt urination; After micturition is terminated, it immediately restores its tension excitement to maintain the tension contraction of the external urethral sphincter.