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
Get urgent or emergency help if you have:
Heavy, continuous, or rapidly increasing rectal bleeding
Fainting, marked dizziness, confusion, or severe weakness
Black, tar-like stool
Rectal bleeding with severe abdominal pain
Fever, pus, spreading redness, or rapidly worsening swelling
Severe or worsening pain after a hemorrhoid procedure
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 prompt medical advice for severe anal pain, particularly when it begins suddenly with a firm lump.
Early assessment can distinguish a thrombosed hemorrhoid from an abscess or another painful condition.
If you take a medicine that reduces blood clotting, report rectal bleeding promptly.
Do not stop a prescribed medicine unless the clinician responsible for it tells you to do so.
3
Does any of this apply?
Book an appointment
Arrange a routine medical appointment for new rectal bleeding, especially if it has not been assessed before.
You should also make an appointment if symptoms last more than about a week despite home care, keep returning, or include a persistent lump or prolapse.
Every sign above is quoted from the sofidex article on Hemorrhoids. If you are not sure, err upward — it is always reasonable to be checked.