Why Doctors May Not Always Try to Save a Fingertip

Which injuries should always be treated by a doctor?
The injuries that damage a "deep structure" like a bone, tendon or nerve should always be treated by a doctor.
What do you think “it’s a different ballgame” means?
I think it's meaning is different injuries which is serious cut.
What are signs of a deep cut?
Forceful bleeding and bright red blood are dangerous signs of a deep cut.
What is Gelfoam?

Gelfoam is a sterile sponge for blooding. It help to stop blooding.

What should you do if your fingertip is cut off?

If the cut is short, I can use some cotton for stoping blooding but if the cut is large, of course I must go to hospital.

Dr. Brown says fingertips are not often reattached if they are the length of a fingernail or shorter.

 How is a fingertip reattached?

It’s done under a microscope, reattaching nerves and arteries and tendons.

What does a patient have to do to regain use of their finger?

the patients must also be willing to undergo a rehabilitation process to regain use of the finger.