Wide skeleton may be caused by the following reasons: i. It may be caused by genetic factors. Some patients, due to genetic factors, are born with a wider skeleton compared to the norm. Such patients often have similar manifestations in their immediate family members. These patients show no significant increase in height compared to other patients, but some lateral bones, such as the clavicle, ribs, or pelvis, are wider and longer than others. In addition to this, the patient’s thorax tends to be wider than normal, and there is often a greater angle in the lower front part of the thorax, the lower corner of the sternum. Such patients are called super strength type of people, that is, people with relatively strong strength. Second, this condition may be caused by external stimulation, such as during the growth and development period, often do some physical labor or physical exercise, due to the stimulation of external forces, it will cause the bones of such patients stronger, the skeleton is wider than normal people. Third, this condition may be caused by too much muscle augmentation. If the patient often does physical exercise and has more developed muscles, the appearance may also appear as a wider skeleton.