Why hands and feet tingle and turn blue?

Answer 1

Sounds rather like poor circulation. Lack of oxygen in the feet (or elsewhere) could cause cyanosis, and that makes the skin look blue. When the blood supply has been cut off from, say, the feet, and then returns, tingling is sometimes felt.

Answer 2

feet turn blue when they are really cold and when there is barely any oxygen getting to them

Answer 3

I would recommend that you see your doctor right away.

Answer 4

When legs and feet turn blue, it is an indicator that circulation has been cut off. If blood flow is not restored, tissue will rapidly die and can result in amputation.

Answer 5

When toes turn blue, the cause is usually bad circulation. The body isn't getting oxygenated blood to the extremities.