Why do we not have to have our eye brows cut?

Question

We all from time to time we need to have a haircut, but why not so for eye brows? If you pluck them they grow back, but how do they know when to stop growing?

Answer 1

Mine started growing when I reached 60 and now I keep them trimmed.

Answer 2

I do. Mine grow like an old man and I'm a young woman. I wax them and trim them.

Answer 3

I actually have to trim mine, they can get out of control. I use those little scissors u get w/ a manicure set---they work wonderfully!