- With Mayo Clinic hematologist
Ruben Mesa, M.D.
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Ruben Mesa, M.D.
Ruben A. Mesa, M.D.
Ruben A. Mesa, M.D., is board certified in internal medicine, hematology and medical oncology and is a consultant and section head in the Division of Hematology and Internal Medicine at Mayo Clinic, Rochester, Minn., and an associate professor of medicine at Mayo Medical School.
The Chicago-area native's primary field of interest is hematology with special interests in both acute and chronic leukemias — specifically the chronic myeloproliferative disorders (MPDs).
"I believe patients' understanding of their disease is a critical first step in the healing process," he says. "I believe that the Internet, carefully used, is a phenomenal resource for patients to be able to access high-quality and valuable information to understand both their diseases and various treatments."
Dr. Mesa has been with Mayo Clinic throughout his training since 1991 and is a graduate of Mayo Medical School. He is a member of the American Society of Hematology, the American Society of Clinical Oncology and the American College of Physicians.
His scholarship has focused on advancing the understanding and therapy of the chronic myeloproliferative disorders. In these disorders, he has been active in evaluating novel therapeutics, implementing clinical trials, working with quality of life studies, and actively involved with national patient groups.
He is supported in these efforts by research funding from the National Cancer Institute, the MPD Foundation, and Mayo Clinic's Hematologic Malignancy Program. He is principal investigator in several trials specifically for myelofibrosis, and is organizing a trial using exercise to counteract MPD-associated fatigue. He is committed to improving the therapy and quality of life in MPD patients. He has lectured both nationally and internationally on these disorders.
Symptoms (1)
- Craving and chewing ice: A sign of anemia?
Causes (1)
- Low hemoglobin: What causes it?
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Question
Craving and chewing ice: A sign of anemia?
Is constantly craving and chewing ice a sign of anemia?
Answer
from Ruben Mesa, M.D.
Possibly. Doctors use the term "pica" to describe craving and chewing substances that have no nutritional value — such as ice, clay, cornstarch or paper. Craving and chewing ice (pagophagia) is often associated with iron deficiency anemia — although it may be associated with other nutritional problems as well.
It's not known why some people with iron deficiency anemia crave and chew ice. Researchers from one recent study suggested it may be because of ice's pain-relieving properties, since some people with iron deficiency anemia experience tongue pain and inflammation (glossitis). The same researchers found that ice has a new and better taste to some people who are iron deficient.
In some individuals, pica is a sign of emotional problems, such as stress, obsessive-compulsive disorder or a developmental disorder.
A thorough medical evaluation can help determine if pica is due to an underlying medical condition. If the cause of pica is an emotional or developmental issue, cognitive behavioral therapy may be helpful.
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