MacBook Pink Vertical Line on Screen — What it means

A pink vertical line usually points to a display panel or display signal issue.

Common causes

• Physical damage to the panel
• Panel defect / aging
• Flex cable/signal issues (especially if it changes with lid movement)

Quick check

Connect an external monitor:

• If the external monitor is fine, it’s likely display/cable related.
• If the external monitor also shows issues, it may be GPU/logic board related.

Share your MacBook model/year and a photo of the screen for faster guidance.