Why Are My Eyelashes Falling Out? 8 Common Causes
Losing a few lashes a day is normal. Losing clumps is not. Here are the most common causes and when to see a doctor.
Losing 1–5 eyelashes a day is normal. Heavier loss is most often caused by rubbing, harsh makeup removal, lash extensions or curlers, blepharitis, allergies, thyroid problems or stress. See a doctor if loss is sudden or comes with redness or swelling.
- 1–5 lashes a day is normal shedding.
- Rubbing and harsh makeup removal are the most common causes.
- Blepharitis and thyroid issues are common medical causes.
- Most lashes grow back within about 6–10 weeks.
How many lashes is it normal to lose?
Each upper eyelid has roughly 90–160 lashes. Lashes shed naturally at the end of their growth cycle, and losing 1–5 a day is normal. Because lashes grow back continuously, you usually do not notice.
8 common causes of eyelash loss
- Rubbing your eyes, especially with allergies.
- Scrubbing off waterproof mascara or sleeping in makeup.
- Curling lashes that are coated in mascara.
- Heavy or poorly applied lash extensions, or pulling extensions off.
- Blepharitis, an inflammation of the eyelid margin.
- Allergic reactions to makeup, lash glue or skincare.
- Thyroid disorders or alopecia areata.
- Severe stress, some medications and chemotherapy.
How to help lashes grow back
Stop rubbing, remove makeup gently with an oil-based remover and take a break from extensions and curlers. Clean the lash line daily with a gentle cleanser. Once any medical cause has been ruled out, a gentle lash serum can support fuller-looking lashes while they recover.
When to see a doctor
See an eye doctor or dermatologist if you lose many lashes suddenly, if loss is on one eye only, if eyebrows or scalp hair are also thinning, or if loss comes with redness, crusting, itching or pain.
See the 10 lash serums in our 2026 ranking, from prostaglandin-free to budget picks.
Best lash serums 2026 ›Frequently asked questions
Do eyelashes grow back?
Can stress make eyelashes fall out?
Can lash serums help with lash loss?
Can mascara make eyelashes fall out?
This article is for information only and is not medical advice. Some links may be affiliate links; how we make money.
