A patient treated with antibiotics develops a "black hairy tongue"



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CANADA – 2016/01/21: Prescription pills in a yellow bottle on a wooden table with selective depth of field. (Photo by Roberto Machado Noa / LightRocket via Getty Images)

SAN FRANCISCO (KRON) – A 55-year-old woman involved in a car accident has developed an unusual infection: "black hairy tongue".

According to a report recently published in the New England Journal of Medicine, the woman was in a car accident where she suffered serious injuries to both legs.

Doctors at the University of Washington in St. Louis said she had an infection in her leg with two antibiotics, including minocycline and meropenem.

A week later, the doctors noticed that his tongue had become black and hairy.

Photo: New England Journal of Medicine

According to the NEJM, the infection is characterized by a hypertrophy of small bumps on the tongue, called "filiform papillae", which take on a brown-black color, giving the impression that the tongue has sprouted.

According to the researchers, within four weeks of stopping the minocycline, the woman's tongue returned to normal color.

Black hairy tongue could be caused by many factors including smoking, irritating mouthwashes, poor oral hygiene and antibiotic treatments, especially tetracyclines.

The World Journal of Gastroenterology estimates that less than 11% of people will have a black hairy tongue.

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