When the legs first grow fat lines, the color is red. As time goes on, the red color gradually darkens. If you don't get fat again later, these lines will become narrow white stripes.
Most of the fat lines on the thighs are caused by these two reasons. First, the fat on the thigh grows rapidly, and the tension of the skin on the leg is hurt, thus growing red fat lines. Another point is that people lose weight quickly. When the fat on the legs loses weight quickly, the skin can't react for a while, which also causes the appearance of obesity lines.
These two points are the common causes of obesity lines. In fact, no matter what causes obesity lines, they all affect people's beauty, so we don't want to be affected by obesity lines. We can do something to dilute the obesity line in our daily life, such as massage, exercise and even laser beauty. These are all good methods.