Phosphorus is a chemical element that is found naturally in air, rocks, soil and organic materials. It is essential for life, and one of the main chemicals necessary for plant growth. As a result, the biggest use of phosphorus is in artificial fertilizers.
When gangrene affects your skin, signs and symptoms may include: 1  Skin discoloration â ranging from pale to blue, purple, black, bronze or red, depending on the type of gangrene you have. 2  A clear line between healthy and damaged skin. 3  Severe pain followed by a feeling of numbness.
Therefore, initial signs and symptoms of gangrene should not be ignored. Symptoms of diabetic gangrene: 1  Pain in the affected area. 2  The affected area turns cold. 3  Change in colour of the affected area from pale or red to brown or black. 4  Development of blisters on the foot. 5  Loss of sensation or numbness in the affected region. 6  Sometimes, the affected region may be extremely painful as gangrene advances.