In fact, the colloquial term wandering a moving organ is meant. As Wanderiere, with scientific name nephroptosis, in medicine is called a lowering of the kidney. Mostly it is caused by a reduced muscle tension and / or heavy weight loss. This can lead to pain, for example, when standing by pulling on the renal vessels or through urinary retention as a result of the kinking of a ureter. If the symptoms are too severe, an operative fixation of the kidney may be necessary. The Wanderiere has set Georg Kreisler in his eponymous song a happy, musical monument.