She was released from New York’s Memorial Sloan Kettering Cancer Center on Christmas Day.
Doctors found cancerous growths on Ginsburg’s lung after she fell in her office in November and suffered three broken ribs, officials said.
The justice, who leads the court's liberal wing, is the eldest person on the Supreme Court. She previously underwent surgery for colorectal cancer in 1999 and pancreatic cancer in 2009, according to the AP.
The Associated Press contributed to this report.