What are three levels of repair or closure?

The three levels of repair or closure typically refer to the processes involved in fixing or restoring tissue after injury. The first level is primary closure, where the edges of a wound are directly approximated and sutured together. The second level is secondary closure, which allows the wound to heal from the inside out, often resulting in a larger scar. The third level, tertiary closure, involves initially leaving the wound open for a period before closing it surgically, usually due to the risk of infection or contamination.