An acute wound is a wound that usually heals in about two weeks. When healing does not occur around this time frame the wound becomes chronic. Chronic wounds can take up to, and over, four to six weeks for the healing process to occur.
Acute wounds may turn into chronic wounds when healing becomes problematic for a variety of reasons such as: burns which cause tissue and vascular damage lessening the amount of blood flow and nutrients needed for healing as well as open sores that become infected causing tissue damage. Repeated trauma to the wound area can also hamper the healing process and turn what was acute into a chronic condition.
Cancer and cancer treatments, a poor immune system and various diseases may also expidite the movement of a wound from acute to chronic.