Why is it bad to chew on ice?

Why is it bad to chew on ice?

• I don't know why I do it... I have to chew ice everywhere I go... But i need to know if it's bad , or what it does?

• Answer:

  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. It can crack the enamel on your teeth.