My toes turn blue if i sit or let them hang. leg red & hurts. my dr checked pulse in foot and said it isn't circulation issue. what else cld it be?

Good chance of Clot.: You had better have your circulation checked again and soon. Pulses have nothing to do with it. More than likely, a vein in your leg is blocked to some degree, not allowing the blood drain from the leg. This is known as a blood clot and can be dangerous if not treated immediately. Do not take this lightly. To remove all doubt, you need to either call your doctor or visit the emergency room.