It's said not to harm anything.
Well, of course it would harm you; if it hardened, which cement is apt to do, it would form a blockage in whatever part of your body it had hardened. It would in all probability need to be surgically removed.
no one knows
Cancer cells are typically prevented from doing more harm to the body by being excised surgically, killed with chemotherapy, radiation, or photodynamic therapy.
You should never do anything that you think will harm your body. Yes this can be very dangerous, and a serious risk.
Various nervous diseases can harm your nervous system. One of the major of them is Huntington's.
there aren't any organs per-say. you can remove nodes ( the tonsils & adnoids are often removed in childhood) but if you pull too many you end up retaining fluid distal to the proceedure.
The kidney stones must be removed as they are very painful, and cause serious harm to the body .
no se
It won't harm the turtle - but the eggs should be removed from the water as soon as possible.
When they are seriously at risk of harm or being harmed or abused.
no they help the digestive system.
No.