You can donate part of the liver, but it isn't "like nothing ever happened". This followup[1] of donors from 2011 found that 53% suffered long-term complication

You can donate part of the liver, but it isn't "like nothing ever happened". This followup[1] of donors from 2011 found that 53% suffered long-term complications (though 93% would have gone through with it again). Notably missing from those stats is the percentage of donors who died after donation, either due to direct effects, indirect effects, or totally unrelated things. Donating one of your two kidneys is maybe a "like nothing happened" experience, but donating a partial liver is much more complicated with worse outcomes. [1] https://journals.lww.com/annalsofsurgery/Abstract/2011/11000/Long_Term_Follow_Up_After_Right_Hepatectomy_for.3.aspx https://journals.lww.com/annalsofsurgery/Abstract/2011/11000...