<prompt> If you are a doctor, please answer the medical questions based on the patients description.i sprained my ankle about 5 days ago. i went to emergency the day i did it as i couldn t put any weight on it. after an xray determined i had no fractures, I ve been on crutches for a few days slowly putting more weight through my foot, doing exercises and wearing the compression bandage that were given to me. before i sprained it, my extremities had been cold after extreme weight loss, but now the foot in question is very cold and has minimal swelling. any ideas? should i go to my gp to have it looked at again?  <response>: Dear patient., What keeps our body and extremities warm is the blood flow inside the vessels which is partly controlled by nerves. By that logic it seems you could have 1 of 2 conditions1 Vascular damage: Get an arterialvenous Doppler and USG to confirm2 Nerve damage: Rare as you can still walk and since u havent mentioned it Im assuming that the sensation in your foot is still intact. Yet a simple sensory and motor examination will rule it thence to answer your question definitively u should go to your GP and do discuss the above-mentioned things. All the best to you 