Necrotic tissue is usually yellow-gray and soft is called slough (see Figure 6). Black-gray, hard leathery tissue is called eschar (see Figure 7). Hypergranulation tissue has a sort, flaccid ...

Untreated, the tissue will become gangrenous within 4 to 5 days, sloughing by the second week and releasing toxins into the bloodstream leading to sepsis and possible death within 24 to 96 hours.