The appearance of new mutations of coronavirus infection leads to an extension of the epidemic regime and makes it necessary to use protective equipment, as well as the constant work of the Red zone departments. Long-term regime of epidontrol, work in PPE and constant skin treatment with disinfectants leads to psychoemotional and physical exhaustion of medical workers, as well as to continuous exposure to traumatic, sensitizing factors. Dermatoses, which first appeared at the beginning of the epidemic and at the early stages of work in harsh conditions, began to acquire a chronic character. There is more information about new types of professional skin lesions among the frontline health care workers. The article describes clinical cases of skin lesions in workers of the Red zone.

Hair shaft defects, which are the result of both congenital and acquired pathologies, are usually accompanied by a violation of their physical characteristics and a change in appearance. Hair becomes dull, dry, not elastic, poorly styled, broken. Determining the presence of hair fragility formed the basis for the classification of heterogeneous abnormalities of the hair shaft and their division into two groups. The similarity of clinical symptoms and the impossibility of visual verification of the diagnosis dictate the need for additional research methods (dermatoscopy, microscopy, histology), the results of which will help to correctly diagnose. Knowledge of the nuances of the clinical picture, the main dermatoscopic and microscopic markers, the distinctive features of the course of various anomalies of the hair rods expands the capabilities of practicing trichologists, cosmetologists, dermatovenerologists and doctors of other specialties in the field of diagnosis, therapy and prevention of structural hair changes. The literature review presents the main clinical, dermatoscopic, microscopic and histological signs of various disorders of hair shafts.

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