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 for:
A seizure, confusion, sudden weakness, numbness, or difficulty walking
Severe shortness of breath or chest pain
Vomiting blood, black tar-like stool, fainting, or heavy bleeding
Inability to pass urine, especially with blood clots
Rapidly increasing abdominal swelling with severe illness
These symptoms are uncommon, but they can indicate serious bleeding, urinary blockage, or nervous system involvement.
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 if you develop visible blood in your urine or stool, ongoing abdominal pain, painful urination, unexplained diarrhoea, or genital symptoms.
Mention all previous countries of residence and travel, including exposures from years ago.
Fever after international travel needs prompt assessment because malaria and other infections may need to be ruled out quickly.
Do not assume fever is caused by schistosomiasis.
3
Does any of this apply?
Book an appointment
Arrange a routine medical appointment if you have had skin contact with freshwater in an area where schistosomiasis occurs.
This is worthwhile even if you feel well, particularly after swimming or wading in lakes, rivers, canals, or streams.
Every sign above is quoted from the sofidex article on Schistosomiasis. If you are not sure, err upward — it is always reasonable to be checked.