The informative value of functional tests (with inderal, potassium and bicycle ergometer), the state of central hemodynamics, and the effectiveness of the anabolic hormone retabolil were studied in young females with dyshormonal myocardial dystrophy. The group consisted of 33 females between the ages of 33 and 45 with maintained menstrual cycle. The presence of cardialgia, syndrome of negative T wave, aggravated gynecologic anamnesis and the absence of clinical and laboratory data testifying to coronarogenous, inflammatory or some other lesion of the heart muscle made it possible to make the diagnosis of dyshormonal myocardial dystrophy. Functional tests with inderal and potassium and bicycle ergometry are objective criteria in the differential diagnosis of ischemic heart disease and dyshormonal myocardial dystrophy. Negative drug tests in individuals with persistent signs of dyshormonal dystrophy of the myocardium are evidence in favour of the development of postdystrophic cardiosclerosis. According to the data of hemodynamics, the functional state of the myocardium in patients with diffuse myocardial dystrophy is impaired. The anabolic hormone retabolil is an agent of pathogenetic therapy in the group of patients studied.