Disclosures: 

Mr White is a content specialist at Clarity Way Rehab, in Hanover, Pennsylvania.

Graphic adapted with permission from Clarity Way Rehab.

References: 

1. Agency for Healthcare Research and Quality.
2. Kumsar NA, Erol A. The behavior of eating glass, with radiological findings: a case of pica. J Neuropsychiatry Clin Neurosci. 2013;25:E46-E48. http://neuro.psychiatryonline.org/article.aspx. Accessed June 26, 2014.
3. http://www.webmd.com/mental-health/mental-health-pica.
4. http://www.nlm.nih.gov/medlineplus/ency/article/001538.htm.