In the article, on the example of two demonstrative clinical cases, the case histories of patients are described, some phenomenon of which at first glance may be perceived as symptoms of a dental and maxillofacial surgical pathology, but in fact are phenomenon of a mental disorder. In the most severe cases, patients, in order to alleviate their condition, stubbornly insist and achieve from the surgeons multiple operative interventions, which should be considered as the formation of a special type of addiction — pathological sectiomania. Summarizing these observations, the authors come to the conclusion about the clinical expediency of isolating this type of addiction and justify the need to refer these patients for a consultation with a psychiatrist.