Invasiveness. Sometimes tumors do not stay harmlessly in one place. They destroy the part of the body in which they originate and then spread to other parts where they start new growth and cause more destruction.

性。有时肿瘤不会在一个地方带着不产生危害。们破坏了部分们诞生的地方，然后身体转移地方，在那里开始新的生长，并导致更多的破坏。