I've hurt my [ankle] and it's hard to carry on; I'll leave by [time] after handing off the urgent bits.
Short notice
A minor injury at Short Notice: What to Tell Your Boss
When a minor injury comes up with little warning, a calm, specific message about cover matters more than a long apology.
Say what you need, briefly
Say you've hurt yourself and need to rest it or get it checked. If it happened at work, note that so it can be recorded, but keep the account brief.
Handle short notice well
At short notice, acknowledge the timing briefly, state clearly what you'll leave and when, and name who covers anything urgent. Being specific about cover reassures your manager far more than an apology does.
Example messages
I took a knock and need to get it checked. Could we note it, and I'll head out by [time]?
I've strained my back and need to rest it; I'll leave by [time] and pick up quiet tasks if I can.
Mistakes to avoid
Don't over-apologise for the timing or leave cover vague. State the plan clearly and keep it short.
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This page shares wording ideas, not legal or HR advice. Follow your own employer's time-off policy.
Common questions
Do I need to detail the injury?
No. That you're hurt and need to rest or get it checked is enough.
How do I handle the short notice?
Acknowledge it briefly, be specific about what you'll leave and who covers, then move on.