Brief Answer:
Can cause pain if there is obstruction or strangulation.

Detailed Answer:
Hi.
Thanks for your query, albeit short and specific.
Can umbilical hernia cause stomach pain?
Yes, it can cause stomach pain if the following situation occurs:
- Obstructed hernia
- Strangulation of the hernia contents.
But it is also necessary to see for the other signs and symptoms.
May I please know if there are other symptoms than pain alone like nausea, vomiting, bloating (distention), constipation or change in bowel habits?

I hope this answers your query, please give feedback and also ask for further relevant queries if you feel that there is a gap of communication.

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Brief Answer:
Must go for clinical evaluation and investigations ASAP

Detailed Answer:
Thanks for your short feedback.
If you have the aforementioned symptoms, I would advise you the following:
Clinical evaluation and examination by a General Surgeon so that further investigations for assistance in confirmation of the diagnosis and plan for further treatment can be done to get an earliest diagnosis and treatment.

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