If you cut your eyelashes with scissors, they will grow back. The follicles remain intact, so cutting doesn’t cause permanent damage or stop regrowth. But there are short-term consequences worth knowing about, from stubby lashes that irritate your eyes to the real risk of injuring yourself with a sharp blade that close to your cornea.
Your Lashes Will Grow Back, but Slowly
Eyelashes grow at a rate of about 0.12 to 0.14 millimeters per day. That’s roughly a millimeter per week, which means it takes a noticeable amount of time for trimmed lashes to return to their original length. The active growth phase for eyelashes lasts around 30 to 45 days, after which the lash enters a transition phase of two to three weeks before eventually resting and shedding naturally.
Because cutting only removes the visible hair and leaves the follicle untouched, your lashes will regrow to their original length over time. Most people can expect a full recovery within one to two months, though the exact timeline depends on where each lash was in its growth cycle when you cut it. Some lashes may have been near the end of their growth phase already, meaning they’ll shed and restart before reaching full length. Others will simply continue growing from where you trimmed them.
Stubby Lashes Can Irritate Your Eyes
The American Academy of Ophthalmology notes that short, stubby lashes may actually be more irritating than long ones. When lashes are cut bluntly, the trimmed ends are stiffer and less tapered than natural lash tips. These blunt ends can poke the surface of your eye or the inside of your eyelid, especially when you blink. The sensation is similar to having something stuck in your eye, and it can persist for days or weeks until the lashes grow out enough to soften and curve away from the eye again.
This is particularly uncomfortable on the upper lid, where lashes are longer and more likely to brush against the eye when shortened to an awkward middle length.
You Lose More Protection Than You Think
Eyelashes do more than frame your eyes. They function as dust catchers, blocking debris that could cause infection or injury. They also act as sensors: when something approaches your eye, like an insect or a stray finger, your lashes detect it and trigger a reflexive blink before contact is made.
A 2015 study published in the Journal of the Royal Society Interface found that lashes also work as air filters. Researchers using artificial eye and eyelash models found that lashes reduce tear evaporation by up to 50 percent, helping keep the eye surface lubricated. Shorter lashes means less filtering, less moisture retention, and a greater chance that dust and small particles reach your cornea. You may notice your eyes feel drier or more sensitive to wind in the weeks after cutting.
The Real Danger Is the Scissors Themselves
The most immediate risk of cutting your eyelashes isn’t the trim itself. It’s holding a sharp blade millimeters from your eyeball. A slip, a flinch, or even a sudden sneeze can result in a corneal abrasion, which is a scratch on the clear surface of your eye. These scratches can be caused by something as small as a tiny metal fragment or the tip of a blade brushing the eye.
Minor corneal abrasions heal on their own within a few days, but larger scratches carry the risk of complications: infection, inflammation of the iris, corneal ulcers, or a condition called recurrent erosion syndrome, where the outer layer of the cornea repeatedly breaks down and causes episodes of pain and blurred vision. Scratches that don’t heal properly or become infected can lead to scarring and, in serious cases, permanent vision loss. If you do accidentally nick your eye, it’s worth having a medical provider evaluate the damage rather than waiting it out, since antibiotics may be needed to prevent infection.
Cutting vs. Pulling: A Key Difference
Cutting lashes and pulling them out produce different regrowth timelines. When you cut a lash, the follicle still holds the existing hair, and that hair continues its current growth cycle. You’ll see length returning within a couple of weeks. When a lash is pulled from the root, the follicle has to restart the entire growth cycle from scratch, which can take a few months.
In both cases, the lash grows back. Permanent lash loss typically only happens when the follicle itself is damaged, whether through burns, chronic inflammation, or certain medical conditions. Simple trimming poses no risk to the follicle.
What to Expect Week by Week
In the first few days after cutting, you’ll have blunt, stubby lashes that may feel prickly against your eyelids. Your eyes might water more than usual or feel gritty, especially outdoors. By week two or three, lashes start to regain enough length that the irritation fades. Within four to six weeks, most trimmed lashes will be close to their original length, though the exact timing varies from person to person. Full restoration of the natural tapered tip, which gives lashes their soft feel, takes the longest since the blunt cut edge only disappears once the lash has grown out completely or shed and been replaced by a new one.
If you trimmed your lashes for cosmetic reasons and aren’t happy with the result, patience is the only real fix. No topical product will speed up the biological growth rate in a meaningful way. The lashes will return on their own timeline.