Do eyebrows grow back when shaved? I have heard the claim that if you shave your eyebrows, they will never grow back. I have even heard that surgeons try as much as they can not to shave a person's eyebrows unless absolutely necessary. Is there any evidence behind this claim? Will eyebrows really never grow back when shaved?

Yes they do grow back

As this video shows. :-)

However, if you prefer something a little more informative you can look at the growth rates of various follicles, and the references around that article (it's well known eyebrow follicles are the slowest to grow).

It seems likely that surgeons avoid shaving them as they are so slow to grow, rather than because they don't grow at all.