Introduction:
Nonalcoholic fatty liver disease (NAFLD) is one of the most common causes of abnormal liver enzymes in adult patients consulted by hepatologists. Due to the high prevalence of this disease, most often associated with obesity, it is necessary to assess the risk of NAFLD, monitoring the progression of the disease and the effectiveness of treatment.

Material and methods:
We evaluated the intensity of steatosis, inflammatory activity and fibrosis in 36 patients with NAFLD (fatty liver in abdominal ultrasound examination), using non-invasive tests: SteatoTest, ActiTest and FibroTest. We compared the prevalence of metabolic disorders and hypertension between women and men.

Results:
There were no significant differences in analysed parameters of metabolic disorders between women and men. In both studied groups, the intensity of steatosis and inflammatory changes was similar. However, in the male group, the intensity of liver fibrosis was higher.

Conclusions:
The tests helped to detect advanced liver fibrosis in patients who were diagnosed with liver steatosis in ultrasound examination. Non-invasive diagnostics of liver injury may be useful in screening to select groups of patients requiring liver biopsy, as well as in monitoring the course of the disease and assessment of the treatment effectiveness. Early detection of liver disease may improve the prognosis of these patients.