Marie Osmond said Wednesday that her 16-year-old son has entered a rehabilitation facility but she didn't disclose the nature of his problem.
"My son, Michael, is an amazing young man, shown through his courage in facing his issues. As his mother I couldn't be more proud of him," Osmond said in a statement issued through her publicist, Marleah Leslie.
"The press and public have always been kind and gracious in the past and I know they will continue to respect our privacy during this time," she said.
The statement was first reported by "Entertainment Tonight."
Michael is one of Osmond's five adopted children. She also has three other children from two marriages.
She announced earlier this year that she and her second husband, Brian Blosil, are divorcing.
The 48-year-old singer-actress has been appearing on the ABC show "Dancing With the Stars." She missed last week's show after her father, George Osmond, patriarch to her and her singing brothers, died at his home in Provo, Utah. He was 90.
She learned Tuesday she had survived the cut and remains a contestant.
Osmond fainted on stage following a samba during a live broadcast of the show on Oct. 22. She quickly recovered and was well enough to continue.
Osmond gained fame at age 13 with the hit song "Paper Roses" and starred with her brother, Donny Osmond, on television's "Donny and Marie Show" during the 1970s.
Her brothers Alan, Wayne, Merrill and Jay Osmond made their television debut as singers in 1962. Over the years, the Osmond Brothers singing group has also included her brothers Donny and Jimmy.