A member asked:

Why in case of constpation appear black spotes in the mouth lips ? what is it ?

A doctor has provided 1 answer
Dr. Devon Webster answered

Specializes in Medical Oncology

Medicine: My first thought: bismuth. Many over-the-counter preparations to treat upset stomachs (like pepti bismol) contain bismuth, which can turn your tongue dark temporarily. Laxatives can also cause dark spots in the mouth and inside the colon if you use them all the time.

Answered 12/10/2013

5.2k views

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