5 Ways to Reduce Lower Body Obesity: We generally refer to the pear-shaped figure as lower body obesity. The hips and thighs become suddenly fatter below the waist. Compared with Westerners, Easterners tend to have shorter leg proportions, so the same amount of fat accumulated in the lower body can easily cause lower body obesity; additionally, Eastern women usually have wider pelvises, which makes the fat hang like clothes on a wide hanger. How to determine if you have a pear-shaped figure?