Introduction: LV remodeling manifests as an increase in LV end-diastolic and end-systolic volumes, an increase in myocardial mass, and a change in chamber geometry to a more spherical shape, and has been considered to be a consequence of heart failure, myocardial infarction or mitral regurgitation. However, less is known about change of LV geometry, especially LV sphericity, in asymptomatic population according to age. Methods: We investigated 212 asymptomatic subjects who volunteered for health screening and underwent transthoracic echocardiography. Those with poor echo image, clinically significant coronary diseae or LV dysfunction were excluded. LV sphericity index is defined as the ratio of the long-axis length divided by LV short-axis length, both during systole and diastole. LV mass was calculated from septal, posterior wall thickness and LV internal dimesion at end-diastole and then divided by body surface area to calculate LV mass index. Results: The mean age of subjects was 49.8짹17 years and the ratio of gender was 84%:16%. Hypertension was in 6.1%, diabetes was in 4.2%. LV sphericity index at diastole correlated to age(r=0.21, p value < 0.05), but LV sphericity index at systole did not. Both indices neither differ between genders nor showed association with aerobic fitness, systolic and diastolic BP. LV mass index correlated to age(r=0.17, p value <0.05) and showed no gender difference. Conclusions: Among the parameters of LV geometry, sphericity index showed decrease with aging in healthy population. Longitudinal follow-up study is needed to determine its usefulness as a predictor of future LV dysfunction in asymptomatic population.