Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency medical help for trouble breathing, chest pain, fainting, confusion, heavy bleeding, coughing up blood, or sudden severe abdominal pain.
One-sided leg swelling with chest pain or breathlessness may indicate a blood clot and also needs emergency assessment.
Contact the surgical team promptly if you develop worsening pain, repeated vomiting, increasing abdominal swelling, fever, wound redness that is spreading, pus or unpleasant-smelling drainage, difficulty passing urine, or a wound that begins to open.
Also call if you cannot pass gas or stool and this is accompanied by increasing pain or swelling.
And for anyone, someone who:
For routine questions about dressings, activity, diet, work forms or an upcoming appointment, use the contact details provided at discharge.
Every sign above is quoted from the sofidex article on Abdominal exploration. If you are not sure, err upward — it is always reasonable to be checked.