Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Get emergency help after an injury if:
Arrange prompt medical advice after a new injury if you cannot use the joint normally, cannot put weight on it, or have marked swelling.
Seek same-day care for a joint that becomes hot, red, very swollen, and painful, especially with fever or feeling very unwell.
This is not a usual feature of hypermobility and may indicate infection or another inflammatory problem.
Keep it supported and seek urgent care.
Book a routine appointment if joint symptoms keep returning, limit sleep or daily activities, or make work, school, or exercise difficult.
Assessment is also appropriate for repeated sprains, subluxations, dislocations, falls, or pain that is not settling.
The article also says
Do not repeatedly force a displaced joint back into position.
Every sign above is quoted from the sofidex article on Hypermobile joints. If you are not sure, err upward — it is always reasonable to be checked.