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A member asked:
What causes dark patches on one side of stool. (not tarry and not melane)?
A doctor has provided 1 answer
Be sure not blood: Hi YijunB Test to be sure its not blood. Many dietary items (skins of fruit or vegetables for example) can appear as dark blobs in otherwise formed stool. Medications containing bismuth can form lumps as well. If it continues, consult your PCP or a GI specialist.
Answered 8/19/2020
2.3k views
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