The high prevalence of non-alcoholic fatty liver disease and its association with diseases of the metabolic profile causes the interest of doctors of various specialties in the management of patients with this pathology. Due to the accumulation of data on risk factors and disease progression, approaches and attitudes about previously harmless pathology have evolved to understand its potential danger. The formation of the correct approach to the management of patients with non-alcoholic fatty liver disease is a priority task. In this publication, we have analyzed and systematized data from literature concerning the most common problems (mistakes) in the curation of patients with non-alcoholic fatty liver disease.