Adding this template to an article places the article into one of a family of categories identifying "Articles with unsourced statements". To find all such articles, see Category:Articles with unsourced statements.
Please remove the template when you add a citation for the statement.
When not to use this template
Unsourced or poorly sourced contentious material about living persons should be removed immediately. Do not tag it— remove it. For more information, see the section on poorly sourced contentious material in the Biography of Living Persons policy.
Material which is doubtful and harmful may be removed immediately, rather than tagged. See Unsourced material.
If you have the time and ability to find an authoritative reference, please do so. Then add the citation yourself, or correct the article text. After all, the ultimate goal is not to merely identify problems, but to fix them.
Many editors object to what they perceive as overuse of this tag, particularly in what is known as "drive-by" tagging, which is applying the tag without attempting to address the issues at all. Consider whether adding this tag in an article is the best approach before using it, and use it judiciously.