Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Contact the treating clinician sooner if weakness progresses, the fingers become harder to straighten, or a splint causes skin sores, swelling, or increased numbness.
After surgery, follow the care team’s instructions and report wound drainage, fever, worsening redness, or an unexpected loss of hand movement.
Follow-up is used to track strength, sensation, joint flexibility, and changes in the finger position.
Clinicians may adjust a splint, modify therapy, or repeat nerve testing if recovery is uncertain.
The article also says
Keep scheduled appointments even if tingling improves, especially when weakness or muscle loss has been present.
Sensation may improve before muscle function, and reduced pain does not always mean the nerve has fully recovered.
Every sign above is quoted from the sofidex article on Claw hand. If you are not sure, err upward — it is always reasonable to be checked.