Three months after the ankle fracture foot drooping purple is mainly caused by local inflammation or poor blood reflux and so on. Drooping feet after ankle fracture is a common complication after fracture, if the symptoms are still not relieved after three months, it may be due to the local blood circulation has not been fully restored, soft tissue injury and local aseptic inflammation has not completely subsided and other factors. When the feet droop and turn purple, you should reduce the activity of the affected limbs, so as not to aggravate the local injury and inflammation, and pay attention to elevate the affected limbs, which is conducive to eliminating the swelling and blood reflux, and can alleviate the purple situation. Hot water can be used to soak the feet every day, pay attention to avoid the water temperature is too high scalding the skin, can improve the circulation, promote blood return. Under the guidance of a doctor, you can also apply medicines such as Mai Zhi Ling tablets or ma ma seed extract to activate blood circulation and eliminate blood stasis to reduce swelling. When the foot droops and turns purple three months after the ankle fracture, you should consult a doctor in time for a review, and take symptomatic treatment under the doctor’s guidance, which will help to alleviate the uncomfortable symptoms as soon as possible.