If you freeze your foot, it can lead to a condition known as frostbite, which is a serious cold-related injury. When the foot is exposed to extremely cold temperatures for an extended period, the tissues, skin, and even deeper layers like muscles and bones can freeze.

The first sign of frostbite is cold, numb skin that turns pale or blue. As the freezing continues, you might lose feeling in your foot, and the skin may become hard and waxy. Severe cases can cause blistering, and eventually, the tissue may die, which can lead to gangrene and possible amputation if untreated.

After rewarming, the foot can be very painful, and swelling might occur. Long-term damage may include permanent numbness, stiffness, or loss of sensation. Immediate medical treatment is crucial to prevent further complications.