The heel bone fracture more than half a year ankle swollen leg color purple consider lower limb blood reflux is not good, or lower limb venous thrombosis. Heel fracture more than half a year ankle swollen leg color purple consider lower limb blood reflux is not good, the main reason is that after the fracture due to prolonged braking, muscle atrophy, muscle pumping effect is weakened, resulting in blood stagnation, so there will be ankle swelling. Because the blood stagnation is venous blood so the local purple, through the later rehabilitation exercise muscle strength enhancement, this phenomenon will gradually disappear. Heel bone fracture patients need to rest and brake, in the process of bed, may be stagnant blood flow and lead to the formation of blood clots. Venous thrombosis will lead to blood flow obstruction, which can lead to swelling and purple color of the lower limbs. Heel bone fracture more than half a year ankle swelling legs purple color suggest timely medical attention, through the lower limbs vascular ultrasound and other examinations to clarify the cause of the disease, and under the guidance of the doctor treatment.