*superficial

*incision

*contusion

*puncture

*laceration

*penetrating

*avulsion

*intact skin (1st line of defense)

*adequate blood supply

*excessive exudate, dead or damages tissue, embeded fragments, pathogenic organisms must be removed

*nutrtion

*overall state of health

*primary: min. or no tissue loss; not contaminated; low infesction risk; closed surgical incision; heals quickly

*secondary: jagged open incision; considerable tissue loss; increased risk for infection; heals slowly; granulation forms from within and fills opening

*tertiary: delayed; contaminated wound left open and sutured after infection under controll