For crotch width needs to be corrected for its cause, if it is due to obesity caused by crotch width, mainly through weight loss, exercise to improve, usually pay attention to regular eating, avoid overeating, eat more fresh vegetables, fruits, moderate amount of supplemental protein, to avoid eating greasy food. It is also necessary to do more physical activities that help control weight, such as swimming, running, playing badminton and so on. If it is due to long-term bad life posture caused by the span width, you need to correct the bad posture in a timely manner, avoid long time to keep sitting position, avoid crossing your legs, you can carry out more side leg lifting exercise, which is conducive to the shaping of the crotch muscles. Exercise when standing sideways against the wall, the outer leg outward extension, maintain about 10 seconds, alternating between the two sides of the leg, 3-4 times a day, each time 20-30 groups.