<s>[INST] I broke my ankle July 6, for 2nd time I have screw pin holding it together, my doctor said if he pulls screw my foot will crumble so I have cast. My concern is purple toes?  I noticed my toes turned purple and they werent til today!!  I was feeling improvement, the pain swelling throbbing was very mild? Now the pain is back and my toes turned purple, I feel numbness in my knee? What should I do? [/INST] Hello, Thanks for writing to us, I have studied your case with diligence. There is possibility of cast tightness leading to purple toe. You should not neglect this problem, consult your doctor. Watch for swelling on toes. Limb elevation can reduce pain, Regular physiotherapy and exercises are very important for early rehabilitation as my patients find much relief by these therapies. Hope this answers your query. If you have additional questions or follow-up queries then please do not hesitate in writing to us. I will be happy to answer your queries. If you are satisfied with the answer, please give your review at the end of the discussion. Wishing you good health. Take care. </s>