Most of the time, eyebrows do grow back, but how fast they grow will depend on your age and overall health. A little patience, avoiding plucking and waxing, and changing your diet may be all you need. … Speak to a doctor if your eyebrow hairs fall out and stop growing for no obvious reason.
Why are my eyebrow hairs so thick?
This can be due to an excess of hormones called androgens, which make your hair production more masculine. Wiry eyebrows can also be a result of genetics, passed down by your parents. Either way, wiry hairs can be a bugbear when trying to tidy up your eyebrows.