Yes, I doubted it too. But one has only to find out the mechanism of the body's recovery and everything becomes clear. When the body repairs tissue at the site of damage, it copies like a xerox those cells that are nearby. And if he comes across a broken, poor-quality cell, of which moles are definitely made up, then he reproduces it many times, and cannot stop - considering these cells damaged, and malignancy lies in the fact that the body then attacks itself , because of such a small glitch in the program, you can bring down the whole system.
If a mole is damaged, it can degenerate into a malignant tumor. True, not all moles are so dangerous. But if you cut it out so that not a single cell remains from the mole, then, I think, it is obvious to everyone that it will not become a tumor.
You can. A birthmark may turn out to be a malignant tumor prone to rapid metastasis, by your actions you will dramatically accelerate this process or activate it if it was not there.
Moles are removed with a laser by specialists in aesthetic surgery. Simple, inexpensive surgery. This way I got rid of three moles. Alive. Try to consult about a large birthmark (Do not try to do anything with it on your own, without the help of a specialist.)