Causes of Black Tongue

Publication
Article
Consultant for PediatriciansConsultant for Pediatricians Vol 6 No 7
Volume 6
Issue 7

In his recent case involving a child with a black tongue, John Harrington, MD, noted that certain types of yeast and bacteria produce porphyrins that can give the tongue a black appearance.

In his recent case involving a child with a black tongue,1 John Harrington, MD, noted that certain types of yeast and bacteria produce porphyrins that can give the tongue a black appearance. To Dr Harrington's comments, I would add that this condition can also occur after ingestion of bismuth subsalicylate (Pepto-Bismol). It is important to keep this in mind when obtaining a history.

- David M. Klein, MD  
  Boro Park Pediatric, PLLC  
  Brooklyn, NY

References:

REFERENCE:


1.

Harrington JW. Making the rounds: round 3.

Consultant For Pediatricians.

2007;6:157-164.

Newsletter

Access practical, evidence-based guidance to support better care for our youngest patients. Join our email list for the latest clinical updates.

Recent Videos
John Browning, MD, provides practical skincare reminders ahead of summer season
Contemporary Pediatrics: RX Review: Updates and Unmet Need in RSV thumbnail
Contemporary Pediatrics: RX Review: Updates and Unmet Need in RSV thumbnail
Contemporary Pediatrics: RX Review: Updates and Unmet Need in RSV thumbnail
Staphylococcus aureus risk in infants and neonatologist considerations with Aaron Milstone, MD
How fragrance plays a role in atopic dermatitis treatments, with John Browning, MD
Octavio Ramilo, MD, reacts to the FDA approval of clesrovimab for RSV prevention | Image Credit: St. Jude Children's Research Hospital
© 2025 MJH Life Sciences

All rights reserved.