When people in the St. Louis area start an injury log, most remember to write the date at the top of each page. That habit is useful. But a date tells you which day something happened, not when the note was written. Those can be different days, and the gap can matter when someone reads the record later.
Consider a common case. A runner rolls an ankle on Tuesday evening, feels fine by Thursday, and writes a summary on Saturday from memory: 'Tuesday: ankle rolled, Thursday fine.' Nothing in that entry was written to mislead, but it was shaped by what the writer remembered by Saturday. Logging the time of writing gives a reader a way to tell a same-day note from a summary written days later.
Two Dates on Every Entry
Use two fields for each entry. The first is the date the event happened. The second is the date and time you wrote the note. Put the event date first, then add a written-at stamp in one format you use every time, such as 2026-10-28 at 7:40 pm. Notes apps and most spreadsheet tools can record this automatically. A paper journal needs a handwritten time. Keep the format identical across entries so sorting and comparing stays simple.
This matters because symptoms often change between the event and the note. A note written at 9 pm on the night of a fall describes the body at that hour. A number chosen the following Monday describes a different moment. Neither entry is wrong, but a reader needs to know which one they are looking at before they can weigh it.
What Goes Wrong Without It
Three problems come up often. First, late entries look like same-day entries, because nothing on the page separates them. Second, one long entry covering several days blurs the order of events, so a reader cannot tell what came first. Third, a note written after a conversation can absorb someone else's words. If a coach says you looked fine on Wednesday and you write about the injury on Friday, the Friday entry may quietly borrow the coach's framing. A written-at stamp will not fix a memory, but it marks the gap so the reader can judge the entry accordingly.
When a detail turns out to be wrong later, do not rewrite the original line to match what you now recall. Add a new line below it, dated and timed, that says what changed. The original stays readable, and the reader can see both versions and when each was written.
A Simple Routine
Write the event line on the same day when you can. If you cannot, write it as soon as you are able and label it 'written late, about' followed by the date. Then add one short sentence about where you were when you wrote it, such as 'at home, after dinner' or 'in the car before practice.' That context helps a reader understand the conditions behind the note without requiring a long explanation.
Time of day can matter for the symptoms you describe too. Some people notice swelling more by evening. Others notice stiffness mainly on waking. When a pain or swelling note carries a written time, a clinician can see a pattern without you having to guess at it. If you can, record entries at similar times of day, because readings taken at very different hours are harder to compare.
Bringing the Record to an Exam
Before a visit with a clinician in the St. Louis area, sort the log into two groups: entries written on the day of the event and entries written later. Mark the later group clearly. This takes a few minutes and saves time during the appointment, when attention is limited. You can also note any entries that were copied from a phone message or a wearable app, so the source is clear.
This guide is educational and does not replace an exam. Some injuries need prompt attention rather than a finished log. If an injury involves numbness, tingling, visible deformity, inability to bear weight, or symptoms that are getting worse, arrange an evaluation promptly instead of waiting until your record looks complete.
The goal is not a perfect record. It is a record that tells the truth about when it was made. A date says which day something happened. A written-at stamp tells the reader how close the note was to the event, and that is often the most useful thing a reader can know.