How to Complain About a Coworker Professionally

Focus on specific behavior and impact, not character judgments.

1. Describe specific incidents with dates rather than general impressions ("always" or "never").
2. Focus on the impact on work, not personal grievances unrelated to the job.
3. Bring it to the right channel — usually your manager or HR, not the wider team.
4. Stay factual and avoid speculating about the coworker's motives or character.

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