With no change for 10 years and no other symptoms (pain, bleeding, diarrhea, etc), it's probably nothing serious. If your dad is bothered by it, he should get medical care. No change in diet will have any effect.
Answered 4/18/2021
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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