Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care for severe bleeding, fainting, breathing difficulty, severe abdominal pain, or signs of shock such as confusion, cold clammy skin, and extreme weakness.
Contact the treating service promptly if bleeding becomes heavier than expected, pain is increasing rather than improving, discharge has an unpleasant odor, or fever develops.
These symptoms can indicate infection or another complication.
Seek urgent assessment for bleeding with possible pregnancy, significant pelvic pain, or fever.
No routine follow-up may be needed when ectropion is found by chance, there are no symptoms, and the cervix otherwise appears healthy.
Continue cervical screening at the recommended interval for your age and location.
Arrange a routine appointment if:
The article also says
After a procedure, follow the clinic's instructions about activity and vaginal products.
If symptoms return months or years later, do not assume the ectropion has returned.
A fresh assessment may be needed because bleeding patterns, pregnancy status, infection risk, and cervical health can change over time.
Every sign above is quoted from the sofidex article on Cervical ectropion. If you are not sure, err upward — it is always reasonable to be checked.