Occasionally, the vernacular speaks of an apple, peach or pear butt. However, objective and comprehensible beauty features of a woman's butt or man's butt are more complex. Individual measurements such as the butt circumference are not very meaningful, as usually only a harmonious overall picture is judged to be beautiful. A waist-hip ratio of about 0.75 characterizes a beautiful female butt. Other characteristics are Venus pits, a Michaelis rhombus (lumbar rhombus), a slight buttock fold (banana fold) and a well-formed buttock. In a trained buttock, a slight hollow can be seen on the lateral edge of the buttock muscle at the transition to the hip. A firm bottom and taut legs look attractive and youthful.
The shape of the buttocks varies according to gender, age, ethnic origin, skin tone, body weight and muscle training. The contour of the buttocks can be viewed from the side and from behind. When viewed from the side, the projection or fullness of the buttocks in the middle area is an essential feature of an attractive butt. As we age, fat deposits accumulate on the hips in women and on the waist in men. The muscle mass and skin tension decreases. Therefore the crisp round butt shape is lost with age. Certain body characteristics such as the shape of the bottom are genetically predisposed. Hereditary factors can cause a little more fatty tissue above or below the buttocks to give the impression of a flat buttocks.