I have flashing stripes on the menu bar of my MacBook Pro

A display glitch could most likely be a hardware issue. ⚠️

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noortje229 wrote:

I have flashing stripes on my menubar, but there is no water damage or other damage. Does anyone know what this could have caused and what I can do about it?

[Re-Titled by Moderator]

You do not say what exact Mac this is...

On the Intel Mac— you can both, resetting the SMC How to reset the SMC of your Mac - Apple Support

and

Try resetting NVRAM/PRAM Reset NVRAM or PRAM on your Mac - Apple Support

(get at least two-three rounds of the chimes when holding the NRAM Reset)

if no resolve it typically indicates a hardware issue:

Learn how to get your Mac fixed and how much it will cost. Mac Repair - Official Apple Support

Get your Mac ready for service - Apple Support Get your Mac ready for service - Apple Support