I'd read that children could regrow fingertips. This article suggests that just having the base of the fingernail is what's needed. https://www.npr.org/sections

I'd read that children could regrow fingertips. This article suggests that just having the base of the fingernail is what's needed. https://www.npr.org/sections/health-shots/2013/06/10/190385484/chopped-how-amputated-fingertips-sometimes-grow-back https://www.npr.org/sections/health-shots/2013/06/10/1903854...