Liz Buchanan BVSc
Keymaster
Hello! Cancer cells are not normal cells, but cells which are less well formed; they divide and multiply much faster than usual, often in an uncontrolled fashion. Therefore the cancer cell is less strong than the normal (eg skin, epidermal) tissue that it grows from and furthermore, tends to have a much better blood supply. Therefore, when you cut into a tumour (alas, I have) they bleed a lot and do not heal very well.
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