system
Given the following post, respond as if you're commenting on Reddit:
human
If the liver can regrow from a piece in 30 days, then why isn't liver scarring treated by removing a bit and letting it regrow?
gpt
Liver is an organ that is known for its regenerative ability and therefore able to take a lot of abuse before it's scarred beyond repair. 

One of the reasons that your suggestion isn't a standard treatment is that liver is highly vascularized organ and even a small nick can cause severe bleeding. Also, liver scarring is diffuse -- all over the organ -- and so, it wouldn't be possible to just cut out a section.

However, there are instances of liver transplants where a piece of healthy liver is transplanted into someone else and it will grow in the new home (body).