Is it normal i thought of an idea for when medical procedures should be done

People always debate as to when things like abortion, plastic surgery, lipo suction and removing foreskin should be done. If they should be done at all. However you can not say NO to any of these any procedures since they are all medically necessary to a point.

So I thought of something that could be applied to all of these and makes sense. The rule would be "Is it medically necessary".

1.If a woman will die from having the child often the child dies or they can only save the mother or child. So in this case its necessary.

2.If someone is overweight by 30 pounds or more liposuction would be allowed.

3. If someone was in an incident where they were horribly disfigured or horribly injured plastic surgery is legal.

4.If someone has a medical problem because of the foreskin it can be removed but can not be removed before hand if only based on sanitary reasons.

We cant say yes or no to all these. Since sometimes these are completely unnecessary but sometimes they are needed. Since none of us seem agree on this point I think taking the medical stance would be the most reasonable solution.

If they simply added this rule in front of everything there would be no debate. People only debate this based on their own moral belief. That however does not work since we all have a different belief system. This rule can be applied to any and all medical procedures.