Subject: Leaving early. Hi [Manager], I've hurt my [ankle] and it's hard to carry on; I'll leave by [time] after handing off the urgent bits. Thanks, [Name].
By email
How to Email Your Boss About A minor injury
When your workplace expects things in writing, a short email about a minor injury keeps a clear record. Put the key facts up front.
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.
Structure it as a short email
In an email, lead with a plain subject line, put the day and leaving time in the first line, add one line on how your work is covered, and keep a courteous sign-off. An email should be shorter than a chat message, not longer.
Example messages
Subject: Leaving early. Hi [Manager], I took a knock and need to get it checked. Could we note it, and I'll head out by [time]? Thanks, [Name].
Subject: Leaving early. Hi [Manager], I've strained my back and need to rest it; I'll leave by [time] and pick up quiet tasks if I can. Thanks, [Name].
Mistakes to avoid
Don't write a long paragraph or bury the ask. Put the day and leaving time in the first line so it's seen at a glance.
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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.
Email or a quick message?
Use email where a written record is expected; a chat message is fine elsewhere.