pernicious anemia
noun
: a severe megaloblastic anemia that is marked by a progressive decrease in the number of red blood cells and by pallor, weakness, and gastrointestinal and nervous disturbances and is caused by malabsorption of vitamin B12 due to the absence of intrinsic factor
Examples of pernicious anemia in a Sentence
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This can happen to those with a condition called pernicious anemia, as well as folks with certain GI disorders (like celiac or Crohn’s) or alcohol use disorder (AUD), and those who’ve had bariatric surgery or another procedure that involved removing some or all of their stomach.
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Erica Sloan, SELF, 21 July 2025
People with pernicious anemia or vitamin B12 deficiency confirmed by a blood test should receive supplementation until their vitamin B12 levels return to normal.
—Melissa Nieves, Verywell Health, 13 May 2025
People with pernicious anemia: This anemia attacks the parietal cells in the stomach, preventing the production of intrinsic factors.
—Melissa Nieves, Verywell Health, 13 May 2025
People with medical conditions like pernicious anemia, which prevents the absorption of vitamin B12, or certain gastrointestinal disorders that impair nutrient absorption may require B12 injections.
—Lindsay Curtis, Verywell Health, 17 Mar. 2025
Address underlying causes: Treat conditions like pernicious anemia or malabsorption disorders.9
Certain medications can affect vitamin B12 absorption and levels, leading to potential deficiencies.
—Sarah Jividen, Verywell Health, 15 Jan. 2025
People with certain medical conditions: Those with pernicious anemia, Crohn's disease, atrophic gastritis, or celiac disease.
—Sarah Jividen, Verywell Health, 15 Jan. 2025
People with a history of seizure disorders, liver issues, bipolar disorder, or pernicious anemia should consult with their doctor before taking a methylated multivitamin.
—Allison Futterman, Discover Magazine, 7 Jan. 2025
The deficiency manifests itself through a type of anemia, called pernicious anemia.
—Veronica Cristino, Vogue, 11 Aug. 2024
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Erica Sloan, SELF, 21 July 2025
People with pernicious anemia or vitamin B12 deficiency confirmed by a blood test should receive supplementation until their vitamin B12 levels return to normal.
—Melissa Nieves, Verywell Health, 13 May 2025
People with pernicious anemia: This anemia attacks the parietal cells in the stomach, preventing the production of intrinsic factors.
—Melissa Nieves, Verywell Health, 13 May 2025
People with medical conditions like pernicious anemia, which prevents the absorption of vitamin B12, or certain gastrointestinal disorders that impair nutrient absorption may require B12 injections.
—Lindsay Curtis, Verywell Health, 17 Mar. 2025
Address underlying causes: Treat conditions like pernicious anemia or malabsorption disorders.9
Certain medications can affect vitamin B12 absorption and levels, leading to potential deficiencies.
—Sarah Jividen, Verywell Health, 15 Jan. 2025
People with certain medical conditions: Those with pernicious anemia, Crohn's disease, atrophic gastritis, or celiac disease.
—Sarah Jividen, Verywell Health, 15 Jan. 2025
People with a history of seizure disorders, liver issues, bipolar disorder, or pernicious anemia should consult with their doctor before taking a methylated multivitamin.
—Allison Futterman, Discover Magazine, 7 Jan. 2025
The deficiency manifests itself through a type of anemia, called pernicious anemia.
—Veronica Cristino, Vogue, 11 Aug. 2024
Cite this Entry
“Pernicious anemia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pernicious%20anemia. Accessed 7 Aug. 2025.
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