Janet Jackson announced on her website Thursday that she is postponing her Unbreakable tour until the spring, but did not disclose why the procedure was needed.
Instead, Jackson told fans only that she learned from doctors that she must undergo the surgery soon.
"It breaks my hear to tell you that I am forced to postpone the Unbreakable Tour until the spring," she wrote.
Jackson went on to ask ticket holders to not give up them up because they "will be honored in a special way when the new schedule is announced."
"Please pray for me, my family and our entire company during this difficult time," she wrote.
Jackson also said in her message that she would not comment further about the medical issue.
The announcement comes just two months after she cancelled two tour dates citing "doctor's orders."
Unbreakable is Jackson's 11th studio album, debuting at No. 1 on the Billboard 200 chart in October.
Jackson is only the third artist to earn No. 1 albums in each of the last four decades, according to Billboard.
Unbreakable is Jackson's first studio album since 2008's Discipline, which also debuted at No. 1.