The injuries that do not show up on the scan
Team doctors make judgement calls under time pressure with imperfect information. A look at why some fractures are only confirmed after the race finishes in Paris.
"Did not show up on the X-ray" is one of the most common sentences in Tour de France medical reporting, and it is usually true rather than an excuse.
Hairline fractures of the ribs, the scaphoid and the sacrum are notoriously difficult to see in the first days after a crash. Standard imaging can look clean while the bone is genuinely broken; the fracture line only becomes visible once healing begins and the surrounding bone changes density. That can take a week or more — by which point the race has moved on to the next mountain range.
Team doctors therefore work from symptoms rather than pictures: pain on specific movements, loss of grip strength, an inability to take a full breath. Those signs get weighed against the rider's own account, which is rarely neutral. Riders in a Grand Tour understate pain as a matter of habit.
The rule that matters is straightforward: anything with a risk of neurological damage, internal bleeding or a displaced fracture ends the race immediately. Everything else becomes a daily conversation between rider, doctor and sports director on the start line.
Post-Tour scans then confirm what the race already suspected — which is why the honest injury list for any edition only appears in August.