It has been noted that great socioeconomic and lifestyle changes have triggered an epidemic of obesity among Eastern Europeans. The objective of this study was to assess the change of adult obesity in Estonia by socioeconomic status and the use of outpatient healthcare services among obese individuals over time. It can be maintained that obesity distribution in Estonia in 1990-2004 developed similarly to an average Western country and, regardless of an increasing level of male obesity, obesity prevalence for 16-64 year-olds was on the average level in Europe in 2004 - 14.0% for men and 14.9% for women. Change in obesity prevalence correlates quite well with changes in the economy in Estonia. From studied socioeconomic variables only age and education (among women) strongly affect the change in obesity level. Obese individuals used outpatient medical care slightly differently compared to individuals with a normal BMI.