Which of the following is NOT a sign of frostbite?

The presence of warm, red skin is not a sign of frostbite. In cases of frostbite, the skin typically exhibits significantly altered characteristics due to severe cold exposure. One common sign is white, waxy skin, which indicates that the tissue is freezing; this is often accompanied by cold and numb sensations as the blood flow decreases.

Additionally, as frostbite progresses, affected areas can present with signs such as dark, blistered skin, which further indicates severe damage that has happened due to continued exposure to cold temperatures. Warm, red skin, however, suggests normal circulation and a healthy response to warmth, which is contrary to the physiological effects of frostbite. Thus, identifying warm, red skin as not a sign of frostbite helps reinforce understanding of how to recognize this condition and differentiate it from healthy skin responses.