What are the first stages of gain green on fingers look like?

The first stages of gangrene on fingers typically present as discoloration, with the skin appearing pale, bluish, or darkening to a deep purple or black. There may be swelling and a feeling of coldness in the affected area. As the condition progresses, the skin may become necrotic, and blisters or sores may develop, often accompanied by a foul odor. Prompt medical attention is crucial to prevent further tissue damage.