I know there’s a reason, but I don’t know what it is.
In: Biology
TLDR: You can. But unless you remove every single cancer cell, the remaining ones can grow back into more tumors.
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“Removing every single cancer cell” probably already sounds hard (it should, they’re microscopic!) but it’s worse than that because some of them might not even be attached at the tumor site anymore. Cancer tumors can shed off cancer cells that float through your body and blood until randomly sticking somewhere else in your body, and then they start growing into more tumors there. If that happens to be inside a vital organ like your pancreas or brain that thy can’t just cut off to make sure they’re removing ALL the cancer cells, you’re now in a very tough spot surgery-wise. This is where cancer drugs that can get to the tumor become even more important, when surgery isn’t possible.
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