LOS ANGELES - said 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," the 48-year-old singer said in a statement issued Wednesday 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," Osmond said.
The statement was first reported by TV show "Entertainment Tonight."
Osmond has eight children. She announced earlier this year that she and her second husband, Brian Blosil, are divorcing.
She has been appearing on "," which airs in Canada on CTV. 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 had survived the cut this week and remains a contestant on the dance competition.
Osmond fainted on stage following a samba during a live broadcast of the show last month. She quickly recovered and was well enough to continue.
"Once in a while that happens to me when I get winded," she has explained.
Osmond gained fame at 13 with the hit song "Paper Roses." She starred with her brother Donny on television's "Donny and Marie Show" during the 1970s.
Her brothers Alan, Wayne, Merrill and Jay made their TV debut in 1962. Over the years, the Osmond Brothers singing group has also included her brothers Donny and Jimmy.