[eli5] Why can cyst grow organs like teeth, eyes and hair but if the original organ is lost it can never grow back?

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Dermoid Cysts are known to grow different types of nonfunctioning organs yet it shows it’s possible for the body to still grow new organs.

what is preventing the body to heal major disabilities like a loss of an eye?

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Anonymous 0 Comments

Teratomas are specifically tumors of the germ cells found in the testes and ovaries. Because these cells are pluripotent and able to turn into other types of cells, tumors of them can contain tissues from other cell types. The main reason why your body can’t regrow lost parts (in most cases) is because most cells are somatic and therefore incapable of differentiating to create new tissues.

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