Why do some cuts/scratches/wounds heal relatively fast, and some take a whole lot longer?

Question

I have a tiny scab on my arm that has scarred and reopened multiple times, but large surgery wounds I’ve had have healed completely in less time than I’ve had this one. Am I just stupid and missing something obvious?

EDIT: I don’t pick at scabs. I can recognise basic cause and effect.

In: 29

Answer 1

Well if it keeps getting reopened it’s never gonna heal, cover it up or something. Surgical wounds tend to be clean, sharp cuts that are then held in place while healing with butterfly sutures or stitches. They heal faster than your average cut of similar size.