# Can trichiasis occur in both upper and lower eyelids?

**URL:** <https://www.patients.community/t/can-trichiasis-occur-in-both-upper-and-lower-eyelids/10468>\
**Category:** Ophthalmology\
**Created:** [February 18, 2026, 1:41pm UTC](https://www.patients.community/t/can-trichiasis-occur-in-both-upper-and-lower-eyelids/10468 "2026-02-18T13:41:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Noahlee07](https://avatars.discourse-cdn.com/v4/letter/n/b5e925/32.png) [@Noahlee07](https://www.patients.community/u/Noahlee07)\
**Post date:** [February 18, 2026, 1:41pm UTC](https://www.patients.community/t/can-trichiasis-occur-in-both-upper-and-lower-eyelids/10468/1 "2026-02-18T13:41:54Z")

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Is it possible for trichiasis, the condition where eyelashes grow inward toward the eye, to affect both the upper and lower eyelids simultaneously, and how common is this occurrence?