Losing a few eyelashes daily is normal, but widespread or persistent loss may indicate alopecia areata, thyroid disease, blepharitis (often linked to Demodex mites), or mechanical damage from cosmetics. Consult a dermatologist or ophthalmologist for diagnosis. Treatments range from lid hygiene and corticosteroids to newer approved medicines for severe cases. Use false lashes and adhesives cautiously to avoid irritation and traction-related loss.

A normal part of life

Everyone loses eyelashes. A few lashes shed daily as part of the normal hair cycle and are usually replaced. You only need to be concerned when many lashes fall out at once or fail to regrow.

Common medical causes

Autoimmune hair loss (alopecia areata)

Alopecia areata can affect eyelashes, producing patchy loss. Dermatologists commonly use intralesional corticosteroid injections or topical steroids. For severe cases in adults, oral JAK inhibitors (for example, baricitinib) are now an approved medical option; a specialist can advise whether newer therapies suit you.

Thyroid disease

Both hypothyroidism and hyperthyroidism can cause hair thinning, including lashes. Treating the underlying thyroid condition with hormone replacement or other appropriate therapy often halts or reverses the hair loss.

Lid inflammation and mites

Blepharitis - inflammation of the eyelid margin - can weaken lash follicles. Demodex mites (Demodex folliculorum and Demodex brevis) commonly live in lashes; when they overpopulate they are linked to blepharitis and lash damage. Good lid hygiene and a clinician-directed treatment plan can reduce mite-related problems.

Cosmetic and mechanical causes

Repeated mechanical stress can damage lashes. Heavy mascara, aggressive rubbing, frequent use of eyelash curlers, or poorly applied eyelash extensions can cause breakage or traction alopecia (loss from pulling). Over time, chronic mechanical trauma may lead to longer-term thinning.

Safe use of false eyelashes and extensions

  • Choose credible products and a trained technician for extensions.
  • Use a latex-free adhesive if you have allergies. Avoid putting glue directly on the eyelid margin.
  • Don't sleep with extensions longer than the recommended time. Remove them gently with an oil-based remover or a technician's recommended method.
  • Avoid sharing lashes, tools, or adhesives. Improper application increases the risk of irritation, infection, or lash loss.

When to see a clinician

See a dermatologist or ophthalmologist if you notice sudden or patchy lash loss, signs of infection (redness, pain, discharge), or persistent irritation. Specialists can check for autoimmune causes, thyroid dysfunction, or blepharitis, and recommend targeted treatments.

Practical care tips

Keep makeup and eyelid debris cleaned each night. Be gentle with curlers and removers. If you suspect an allergic reaction to glue or mascara, stop using the product and see a clinician.

If lash loss affects your appearance or comfort, a clinician can outline medical and cosmetic options tailored to the cause.

FAQs about Eyelashes

Is it normal to lose eyelashes?
Yes. Small numbers of lashes fall out daily as part of the normal hair cycle. Be concerned when many lashes fall out suddenly or do not regrow.
Can thyroid problems cause eyelash loss?
Yes. Both underactive and overactive thyroid conditions can cause thinning of scalp and eyelash hair; treating the thyroid disorder often improves hair health.
Do Demodex mites make eyelashes fall out?
Demodex mites commonly live in lash follicles. Overgrowth can contribute to blepharitis and lash damage. Improved lid hygiene and clinician-directed treatment can help.
Are eyelash extensions safe?
They can be safe when applied and removed by trained technicians using appropriate adhesive. Risks include irritation, infection, allergic reactions, and traction-related lash loss if misused.
What treatments are available for significant eyelash loss?
Options depend on the cause and may include lid hygiene, topical or injected corticosteroids, treatment for thyroid disease, and - under specialist care - newer systemic options for severe autoimmune hair loss.