Someone I know managed to break their arm on Monday, and is off on holiday next week. Other than concerns about having one arm pasty-white while the other tans, and how to enjoy a beach holiday with one arm in plaster, there's also the question of proving they're OK to fly.
My friend did ask the hospital about flying, whilst getting the plaster put on, and was told "by next week you'll be fine to fly with this cast on". So, from a medical perspective, they should be fine. However, that was only a verbal OK, nothing written.
As a few questions here around Easyjet and intra-Schengen flight ID has taught me, Easyjet can sometimes be stricter on rules / documents than some other airlines. Discovering this WRT plaster casts when about to fly off on holiday isn't the ideal time...
Thus the query - what, if any, paperwork / documentation / doctors notes / pre-approvals / etc does my friend need to be able to fly with Easyjet with an arm in plaster > 7 days after breaking their arm?