Sixty patients with a prehypertonic condition (aged 7 to 13 years) were studied to assess their clinical-psychological characteristics as well as microsocial psychogenic factors involved. It was established that in 80% of the families studied, despite their apparent "normality and respectability", there were some adverse familial relations which exerted both pathoplastic and pathogenetic influence on the formation of vegetative-vascular dystonia of a hypertonic type. The degree and the range of attending psychosomatic disturbances depend on the severity of the conflict and on the nature (acute or chronic) of a psychotrauma as well as on the child's awareness of the problem. It is important that the elicited characteristics of the concrete mechanisms of the development of psychic traumas should be considered in devising psychotherapeutic method of the prophylaxis and treatment of these patients.