Nephroptosis - prolapse of the kidney The cause of this condition can be different. Starting with a sharp decrease in body weight, ending with severe infectious diseases affecting the kidneys. But why, in principle, is the prolapse of this organ possible? After all, the heart, lungs, liver and others do not "indulge". The answer lies in the mechanism of fixation of the kidney. It "holds on" to its own vessels, as well as held in a bed of muscles. In essence, the kidney is suspended like a chandelier. Hence the instability - the possibility of the chandelier "sagging".