Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Go to an emergency department now for a very swollen and painful belly with repeated vomiting, especially green vomit, or if your child cannot pass poo or wind.
These symptoms can suggest a blocked bowel.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek same-day medical advice if your child has:
A swollen belly with vomiting or worsening pain
Fever and appears unusually unwell
More than a small streak of blood in the poo
Black or tar-like poo
New weakness, numbness, or problems controlling urine
3
Does any of this apply?
Book an appointment
Book a routine appointment if soiling happens repeatedly after toilet training.
Also arrange an appointment if constipation lasts longer than two weeks, bowel movements are regularly painful, accidents affect school or wellbeing, or home measures are not helping.
Mention it at your child's appointment, especially if it keeps happening.
The article also says
A small streak of bright-red blood after passing a hard poo may come from a tiny crack at the bottom.
Every sign above is quoted from the sofidex article on Soiling. If you are not sure, err upward — it is always reasonable to be checked.