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The development of hair lichen is influenced by various opportunistic and pathogenic viruses and bacteria, which, under certain conditions, actively multiply and cause unpleasant symptoms. Doctors have not yet been able to finally establish the main pathogens of some types of hair lichen. It is generally accepted that follicular keratosis, which is transmitted hereditarily according to the dominant type, can provoke pathology. To activate this gene, provoking factors are necessary.
