How does the human body differentiate between abrasions and cuts or stretch marks? And if the body sees them similarly, why do they heal differently?
In: Biology
I think what you are asking is more about how they heal, and what concerns you have for each. Stretch marks are of no concern, think of it more as scarring from quickly growing skin.
An abrasion, which could also be called a cut in some cases, generally has a “slice” look. A flap, if you will. You want to get into the wound and clean it out to avoid festering bacteria causing infection. Then, in some cases, stitch it back to hold it closed and aid in the healing.
A puncture is a little trickier. It usually plunges bacteria much deeper, and creates a sort of suction on the way out, closing the wound. Often you’ll want to make sure to bandage and use antibacterial ointment on these for several days.
Tetanus is also a factor for any dirty wound.
So it is less about how your body “views” the injury, and more about what to watch for in wound care.
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