Miction parameters

All information on the topic of miction parameters

At a glance

Miction is the physiological process that leads to the emptying of the bladder. The miction is controlled by the nervous system. Strain receptors in the bladder wall send signals to the brain about the level of the bladder. The healthy person reacts with a tension of the arbitrary bladder closing muscle to suppress the emptying of the bladder.

If this muscle is relaxed, the miction begins. Reflectively, the bladder muscle stretches to empty the bladder to the end. By tightening the abdominal muscles, the pressure in the bladder can be increased, which accelerates the miction. The miction is usually painless and can be controlled intentionally.

For more information

The control of the bladder closing muscle and thus over the miction are usually developed by children between the 2. and 3. year of life. Older children and adults can usually consciously control this process, delaying the passage to the toilet or giving in to the urge to urinate and emptying the bladder. At a certain point of the filling of the bladder, however, the urinating can no longer be controlled and works reflexively. How intensely the pressure of the bladder is experienced is individual.

The number of mictions is also referred to as the miction frequency.

The miction frequency depends, among other things, on the individual capacity of the bladder and on the amount of fluid absorbed. It increases with age.

The reasons for miction changes are manifold. They can be flammable, mechanical, neurogenic or psychogenic.

Miction parameters can be distinguished as follows:


  • Michel et al. (2016): Die Urologie, Springer Medizin Verlag, Heidelberg 2016
  • Wein, A. J. et al.(2016): Campbell-Walsh Urology, 11th Edition, Elseveier, New York
  • Antwerp, F.: Miktion, URL: https://flexikon.doccheck.com/de/Miktion, Retrieved 18.06.2019
  • Nunmacher, Dr. (2019): Miktion, URL: https://medlexi.de/Miktion, Retrieved 18.06.2019
Status of information: 2022