When we have an external wound the wound generally tents to clot and there is a

Question

When we have an external wound the wound generally tents to clot and there is a layer of solid scab formed.

Now,Yesterday while brushing my teeth i somehow hurt my gums and it got all bloody but didn't clot neither did it pain just after the accident

after maybe like 12 or 15 hrs later i have trouble opening my lips and when i looked at the spot in the mirror the gum tissue around and on the wound had become a White/Yellowish color.

Our Mouth are supposed to be the most contaminated regions on the human body so how come these mouth wounds heal in just about a week and don't get infected .

what is the healing mechanism found in the mouth tissue cause i figure its completely different from the process on the external body wounds?

Explanation / Answer

The mucosa ("slimey" skin) of course has different properties from your epidermis (outer skin) but the wound healing process is pretty much the same; the blood clotting process might be different though. About this I'm not entirely sure, but my best guess is that the "scab" is washed away by mucus and only the clots inside vessels remain, making them invisible from outside.

The white/yellowish colour is the underlying layer of fatty tissue. Chances are your wound does get infected but your immune system is able to clear it away easily. If infection is a bit heavier, it can strain the immune cells a bit more and some of them may die - you can then see them as pus (which is mostly white blood cells).

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