Why the surface looks uneven
Cellulite is a pattern in the way skin, fat, and connective tissue meet—not a separate kind of fat. Just beneath the skin, fibrous bands called septa run down into deeper tissue. Their arrangement and tension help determine where the skin is held close and where it can bulge slightly over fat beneath it. The dimples become visible when that contrast shows through the skin.
Why it varies from person to person
The same basic structure does not look identical on every body. The thickness and elasticity of the skin, the amount and distribution of fat, and the layout of the connective bands all affect how pronounced the surface appears. Hormonal influences and aging can also alter skin and underlying tissue, changing how clearly the contours show. Cellulite can therefore be visible at different body sizes; it is not a reliable measure of weight or fitness.
The pattern is especially common in women, in part because connective-tissue bands are often arranged differently than they are in men. That difference can make upward bulges between the bands more visible. It also explains why simply having less fat does not guarantee smooth skin: the underlying bands and the skin covering them matter too.
A normal variation in body structure
Cellulite is not, by itself, a sign that anything is wrong. Its familiar quilted look is the surface trace of several tissues pulling and pressing in different directions—a small-scale map of how the body is built beneath the skin.
