The causes of naturally thick legs are as follows.
Differences between individuals can occur, influenced by genetic genes, some people have thick bones and large muscle mass in the legs, which can appear thick legs, these are normal.
A part of the people because of metabolic characteristics more prone to obesity, can also be manifested as thick thighs, can control the diet and increase exercise to achieve the effect of total body fat loss, so that the leg circumference reduced.
Kneeling since childhood can also appear thick calves.
Some rare genetic diseases such as Duchenne-type muscular dystrophy can also manifest as pseudomuscular hypertrophy of the legs.