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Reputation: 10

How fast do eyebrows grow back?

My 9 year old was "experimenting with scissors" and ended up clipping off a pretty big divit in her left eyebrow. Anyone know how long it might take for those odd little hairs to grow back?

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3 Answers

  • Qlandav2ex_small
    Reputation: 4209

    In an active follicle where the hair is actually growing, it is a general rule of about 1 mm per day or about an inch per month although some resources list a centimeter per month. There is variability in that between persons, age and in the location of the follicle on the body affects this rate of growth.

    Growth of hair is a little bit more complicated in the following ways. Any particular follicle has several phases of activity in its growth cycle. It actively grows to a genetically preset length (which is why we don't have eyebrow hair that extends for inches). Then the follicle goes into a quiet phase and lastly the hair is shed and a new one regenerates in its place. This process actually has named phases (anagen, catagen and telogen) and if you want to know the distinct terminology and process you can research it.

    Those hairs that have been cut may be in any one of these phases and will undergo their natural process to eventually get to replacement phase and the overall look of the eyebrow to become more normal.

    Considering the various phases and overall rates of hair replacement it appears that for the full return to the way it was will be somewhere around a year or more. Having said that the situation will continue to improve over time but won't happen suddenly.

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  • Memstad2011_copy_small
    Reputation: 593

    I shaved half of my right eyebrow when I was thirteen...it grew back by the time I was in high school (kidding! I'm remembering it at about three months to look almost normal), but the hairs have always grown upward, not outward, in the previously shaved spot. 

    I'd be inclined to leave the cut spot alone, plucking sometimes discourages future growth, that's why old ladies have such funny thin eyebrows.  It'll be back to normal by the time school starts next year, and at nine at least she's not under the kind of serious self conscious glamour-pressure she would be if she was older.

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  • Spaceship_small
    Reputation: 1812

    Are you aware of the problem that Lana Turner ran into?

    She was required or asked to shave off her eyebrows for a movie she starred in (I THINK, it might have been "The Adventures of Marco Polo" in 1939).

    .... and lo and behold, they never grew back again.
    For the rest of her career, she had them drawn in, and made-up to appear on camera.

    I believe the purpose of eyebrows are to either protect from dust or dirt, and/or to protect from glare. But I'm not sure where I learned that.

    Anyway, the point is that eyebrows grow very slowly.

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