It has been found that copper vapour laser emission is a highly effective treatment of chronic degenerative diseases of the vulva (HDZV): squamous cell hyperplasia and sclerotic depriving vulva (SLV). Application of a copper vapor laser can reduce the clinical manifestations of these diseases and decrease the frequency of recurrences. The basis of pathogenesis-based treatment is normalization of hormonal status in patients with vulvar squamous cell hyperplasia (PRTs) and immunomodulatory effects, manifested by normalization of major subpopulations of immunocompetent cells relations, changes in the level of expression of receptors for interleukin-2 and transferrin on lymphocytes, increased levels of nonspecific resistance.