Unexplained marks appearing on M5 13-inch Mac screen

Can anyone advise please? I’ve had my M5 13 inch Mac since April 2026. The past few months I've noticed these little marks come up (the one photographed at the bottom of the screen is the worst, there's also one that looks like a smudge but doesn't show up on camera!) I only clean the screen with a dry microfibre cloth and don't eat over it or have greasy fingers when typing so I'm not sure why this has happened?

I can't get to an Apple Store very easily so wanted to ask here first if anyone has experienced a similar issue?

Many thanks - Caitlin x

[Edited by Moderator]

Posted on Nov 8, 2026 8:32 AM

1 reply

D.I. Johnson

Level 8 (45,031 points)

Nov 8, 2026 10:14 AM in response to Caitlin_jh

This is Apple's guidance for cleaning your Mac's screen: Clean you Mac computer's screen or display - Apple Support

Basically it advises that one should use a clean, damp, lint-free or microfibre cloth. Dry cloth may not always work best.

One may also include the use of 70% isopropyl alcohol for better cleaning.