Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Go to an emergency department or call emergency services if a baby or child has:
A newborn with no visible anal opening, no passage of meconium, or stool coming from the urinary or genital area needs urgent medical assessment the same day.
Do not insert a thermometer, suppository, or enema into an absent or abnormal opening.
After surgery, seek urgent advice for fever with worsening wound redness, pus, heavy bleeding, persistent vomiting, marked abdominal swelling, or no stool output when stool would normally be expected.
A dark, pale, or suddenly swollen stoma also needs urgent assessment.
Urinary pain, frequent urinary infections, new leakage, or difficulty emptying the bladder should also be discussed promptly with the specialist team.
Routine follow-up is appropriate for constipation, occasional soiling, skin irritation, concerns about toilet training, or a bowel programme that is becoming less effective.
Every sign above is quoted from the sofidex article on Imperforate anus. If you are not sure, err upward — it is always reasonable to be checked.