Clinical patients calf muscle atrophy, can appear calf more and more thin, the specific causes need to be based on the patient’s specific condition and the amount of activity to be determined, mainly in the following cases: 1, trauma: if the patient is traumatic braking or long-term bedridden, can be caused by both lower limbs of the calf muscle wasting atrophy, resulting in the calf more and more thin. At this time, it is necessary to carry out functional exercise according to the patient’s condition, which can make the lower limb calf muscle content gradually increase, improve the lower limb calf more and more thin. 2, cortisolism: if the patient appeared calf muscle atrophy, accompanied by the muscle atrophy of the two upper limbs, accompanied by the full-moon face, buffalo back, hanging abdomen, such as centripetal obesity. At this time, you need to improve the monitoring of blood cortisol and ACTH under the guidance of the doctor, to clarify whether there is cortisolism.