• Everything Bladder


    The blog this week is dedicated to all things bladder related.

    Urinary Dysfunction

    Many of the patients I treat have some sort of urinary dysfunction. It may be that they are urinating too frequently, that their bladder keeps them up at night, or that they notice themselves leaking during activities. While most of us are familiar with the location, size and function of the bladder, my patients are constantly shocked that their bladder in addition to being an organ also contains muscle.

    Bladder Anatomy 101

    The bladder is surrounded and lined by smooth muscle called the detrusor muscle. In addition there are two sphincters which help to maintain continence. The internal sphincter is located at the base of the bladder (we do not have much control over this one) and the external sphincter which contains more volitional muscle and is located farther away from the bladder down the urethra. 


    Urination - a step by step guide. 

    When the muscle is in a relaxed state it allows the bladder to fill with urine.

    When the muscle contracts it squeezes the bladder with a goal of emptying it of urine.

    When the detrusor muscle contracts - the internal & external urethral sphincters relax allowing urine to flow from the bladder down the urethra to empty.


    The bladder can contract?

    At the halfway point (at about 200 ml) the detrusor muscle begins to contract, this causes the internal urethral sphincter muscle to relax and sends a signal through the nervous system to create the urge to urinate.

    However the bladder still has plenty of space to continue to fill, keep in mind a healthy bladder can stretch.


    Bladder by the numbers:

    The bladder is able to hold up to about 400-600 ml of liquid. 

    The rate of filling is estimated to be about 15 drops per minute.


    What is "normal"?

    I get asked a lot of questions about what normal is with respect to the bladder.

    So here is normal bladder behavior for adults:

    Urinary bathroom breaks for a 24 hour period: 5-8

    Frequency: every 3-4 hours

    After bedtime: 0-1


    If your bladder keeps you awake at night, wakes you up frequently, or you are constantly making trips to the bathroom during your workout then you may benefit from pelvic floor physical therapy.


    Stay Healthy Stay Bodywise