Lateral thigh protrusion is generally common for the following reasons: First, the patient was traumatized by local tissue damage accompanied by capillary hemorrhage, can form a hematoma protruding from the body surface. At this time, the patient local ice for 24 hours, 24 hours after the capillary bleeding stopped, you can give local hot compresses, while oral bruises pill, to promote the faster absorption of hematoma. Second, lateral thigh lipoma, due to the abnormal accumulation of adipose tissue, can form a local tumor-like change. In order to avoid the increase of lipoma volume and affect the normal activities, it is recommended to perform surgery to remove it. Bone tumor, mostly seen in adolescents, requires X-ray and CT examination as soon as possible to clarify the nature of the lesion and then resect the tumor as soon as possible, and some patients even need amputation to preserve their lives.