Syndrome is a condition in which the patient has general pathological signs of damage to several organs and systems. At the current level of medical science, one or another nosological focus can be suspected based on the syndrome, and such attempts at systematization are called hypotheses or models of syndromes. They are not put forward as part of the diagnosis, since the development of a model of the syndrome requires similarity in the nature of the disorders, and the presence of diagnoses requires the absence of one organ.