Women who train their glutes, control their calorie intake, and eat a high-protein diet will generally end up with a round or heart-shaped butt. Similar to the round butt, it looks curvy from the side. When seen from the back, it resembles the shape of a heart, hence its name. It results from a narrow waistline, decent gluteal development, and even fat distribution on the buttocks. Like the round butt, a heart-shaped behind is desirable but less common. Like the square butt, fat distribution, hip bone shape, and muscle development determine the shape. When seen from the back, the inverted butt resembles the letter V. As such, the inverted butt is wider and rounder at the top but narrow and flat in the lower area. It results from having more mass in the upper glute area but not enough in the middle and lower butt region. The Inverted butt shape is also relatively common and not as desirable as a round or heart-shaped behind. While impossible to change the shape of your hip bone, building muscle in the area and losing fat can change how your butt looks, leading to a round or heart-shaped behind. A layer of fat covering the sides of the hips (love handle area), further contributing to the square butt appearanceĪ square bum resembles the letter H when seen from the back and generally appears flat from the side.Low muscular development in the gluteal region.The shape of the hip bone is more square, featuring straight lines.The square butt is relatively common and generally results from three things: In contrast to the desirable round behind, a square butt is much more common but less desirable. The golden ratio for men comes from broad shoulders and a narrow waist, but the opposite appears true for women.įor women, a wider waist measurement compared to the rest of the body contributes to the popular hourglass figure that men and women consider more attractive. When seen from behind, the round butt looks like the letter O and makes the lower back and thighs appear smaller in comparison.Ī round butt contributes to the 1.618 golden ratio we discussed in our Greek god physique guide. Even fat distribution and balanced muscle development in the upper, middle, and lower glutes contribute to the round behind. Round ButtĪ round buttock, also known as a bubble butt, is perhaps the most popular and desirable of the four shapes. While no two butts look the same, four primary types classify almost every bum on the planet.

9 Ready to get started? The 4 Primary Butt Shapes

Flat butt before after