The article discusses the mechanism of the disease “Covid-19 – Postcovid Syndrome”. The mechanisms of pathogenesis of this disease in pregnant women are affected. The most proven mechanisms of the pathogenesis of the disease and the most correct methods of treatment according to the literature data are investigated. In comparative terms, the advantage of the “System Method of Leeching” in comparison with the proposed methods of treatment is shown. The possibility of monotherapy with medical leeches (hirudotherapy) of this disease and recommendations for pregnant women at risk of the disease are shown.