The first lady said her daughters, 9-year-old Sasha and 12-year-old Malia, have certain restrictions that other kids don't have due to Secret Service issues.
In a TV interview Wednesday, she added that she's "not a big fan of young kids having Facebook."
Even if the girls weren't living in the White House, the first lady said Facebook is "not something they need." Maybe when they get older, she said.
The Associated Press contributed to this report.