Open wounds are a perfect playground for bacteria, but some of these bacteria can actually be beneficial. Alcaligenes faecalis Originally discovered in feces, this substance hence its name, promotes the healing of chronic wounds.
In people with diabetes, the body's carefully regulated wound healing process breaks down, leading to chronic wounds that don't heal. These injuries are difficult to treat and often lead to painful infections that can lead to amputations and death.
Source: www.newscientist.com