Eli5: Why is cancer so harmful to the body?

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I understand that cancer is uncontrolled reproduction of cells but why is that so harmful? How do extra cells make is so sick?

In: Biology

8 Answers

Anonymous 0 Comments

The cells still need food and they still take up space. Food and space that’s supposed to go to something important.

Eventually the growing tumors get so large and energy hungry that they’re crushing or starving nearby organs and disabling them.

In some cases the tumors grow so large that they starve themselves as well, and start to fill with necrotic tissue.

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