When a person gets a cut the wholeness of the skin is broken. It doesn’t matter whether it is small or large, shallow or deep, your body’s defense has been broken. That is why it is important to clean any wound thoroughly to prevent infection.
Bleeding takes place, sometimes in copious amounts and other times a small smattering of blood, depending on the depth or severity of the cut. If the cut is deep there is no immediate pain as nerve endings are severed also, the pain comes later when nerves not severed get the message to your brain.
If the edges of the wound are brought together and sutured or glued, there will still be a scar, but one barely visible and in time may be forgotten. If, however, the wound is left open, a mesh work of blood and cells fill in the space and a scab begins to cover the wound. This scab protects and the cut begins healing from the inside out. The scab becomes hard and begins to shrink as healing takes place.
A scab is rarely left alone, however, and one starts picking at the edges and perhaps removes the whole scab. Then bleeding starts over and the process of scab formation starts again. When the healing is complete the scab will fall off, a white patch is in place of where the skin was, always a reminder of the past injury.
Emotional scars have the same anatomy. A small or well approximated injury will leave a scar, but in time may be forgotten. Wounds left open need time to fill in and protect. Like a physical scab, it is often not left alone, opening up to rawness and bleeding and in need of a new scab.
If it is a deep wound, there may be no immediate feeling, but a numbness that takes time to feel the pain. And when healing is complete and the scab falls away, there is a scar, always a reminder of past injury.,