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.
When blood flow throughout the body is lessened, the individual experiences symptoms of poor blood circulation. Symptoms of poor circulation include tingling, numbness, throbbing or stinging pain in the limbs; and muscle cramps, explains Healthline. Restricted blood flow to parts of the body may also result in gangrene.