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
Call emergency services for:
Bleeding that will not stop
Vomiting blood or passing black, tar-like stools with weakness or dizziness
Sudden severe pain under the left ribs or in the left shoulder, especially after an injury
Fainting, confusion, severe breathing difficulty, or signs of shock
Sudden left-sided pain after an impact can be a sign of splenic injury and needs emergency assessment.
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 same-day medical advice if you develop:
Fever when you have been told your white blood cell count is very low
Fever after your spleen has been removed, especially if you feel unwell
New bleeding from the gums or nose that keeps returning
Many new bruises or pinpoint red or purple skin spots
Rapidly worsening weakness, breathlessness, or signs of infection
3
Does any of this apply?
Book an appointment
Arrange routine follow-up if you have known hypersplenism and notice increasing tiredness, more frequent bruising, repeated infections, or greater fullness under the left ribs.
These changes may mean that your blood counts or spleen size need to be reassessed.
Every sign above is quoted from the sofidex article on Hypersplenism. If you are not sure, err upward — it is always reasonable to be checked.