Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for rapidly increasing neck swelling, trouble breathing, severe difficulty swallowing, fainting, or sudden major voice change with neck pressure.
Do not drive yourself.
Contact your surgical team urgently for increasing tingling around the mouth, muscle cramps or spasms, marked weakness, confusion, or symptoms that continue despite prescribed calcium.
These can indicate low blood calcium.
Also contact the team promptly for fever, spreading redness, pus, worsening wound pain, persistent vomiting, or bleeding from the incision.
Routine questions about your scar, return to exercise, test results, or medication duration can usually wait for normal office hours or your planned follow-up appointment.
Every sign above is quoted from the sofidex article on Parathyroid gland removal. If you are not sure, err upward — it is always reasonable to be checked.