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A 23-year-old female asked:

After using the bathroom i noticed a long thin brown string like substance in my stool. i've ate a lot of nuts past few days. could fiber cause this?

1 doctor answer2 doctors weighed in
Dr. Veena Govila
61 years experience
Stool long fibre: Thin long string like substance? In the stool. Did you save it? Please talk to your dr. Sometimes tapeworms or round worms can do that , depending on where you live and what you eat? Unlikely. But talk to your dr.
Last updated Jul 25, 2017

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