A spokesperson says Clinton has been recovering at home. She will resume her office schedule on Monday.
Doctors say she contracted a stomach virus earlier this month. Aides say she became dehydrated, then fainted, fell and hit her head.
Clinton was then diagnosed with a concussion on Dec. 13 and hasn't been seen in public since.
Clinton's illness led her to cancel an overseas trip and scheduled testimony before Congress about the attack on the U.S. Consulate in Libya.
The Associated Press contributed to this report.