Swollen and purple feet may be caused by ankle sprains, varicose veins of the lower limbs, deep vein thrombosis and other diseases.
1. Ankle sprain: After ankle sprain, the skin around the ankle joint may be swollen and purple, and accompanied by pain, in severe cases, the pain is unbearable, and even can not stand and walk by themselves.
2. Varicose veins of the lower limbs: due to the dysfunction of the valves of the superficial veins of the lower limbs, which leads to the reflux of blood in the veins, resulting in the increase of pressure in the veins, blood stagnation, and the formation of dilated and tortuous walls of the veins. It can be seen that the affected limbs have raised veins, which are earthworm-like and are accompanied by edema, heaviness and fatigue of the affected limbs. If the disease duration is long, there may be skin pigmentation in the calves and feet, which may be purple.
3. Deep vein thrombosis: mainly due to venous injury, blood hypercoagulability and other factors, deep vein thrombosis of the lower limbs, can make the patient’s lower limbs, foot edema, severe cases, can be swollen to bruises or pale, and will be accompanied by elevated skin temperature, tenderness.
In addition, there are many other causes of foot swelling and purple, it is recommended that patients go to the hospital in a timely manner to identify the cause of the disease, and then follow the doctor’s instructions for treatment.