In 2006, season two contestant Romeo Miller retired from Dancing With The Stars due to an injury and was replaced by his father, Master P.
Pro-dancer Derek Hough pulled his neck during rehearsal during season six in 2008 and missed a dance week.
Derek during season 7 also passed out during rehearsal after tripping and landing on the back of his head.
Season seven also saw the departure of Misty May-Treanor after she injured herself and tore her Achilles tendon during training.
Rehearsal injury: Misty May-Treanor is shown with presenter Tom Bergeron in October 2008 revealing that she tore her Achilles tendon while training for Dancing With The Stars
Brooke Burke also badly injured her foot during the seventh season during camera lock when she landed hard and did a front flip with her pro partner Derek.
Susan Lucci broke two bones in her foot in season seven but stayed in the competition.
Nancy O’Dell withdrew from season eight due to a torn meniscus, along with Jewel, who broke both her shins shortly before the season’s premiere.
Steve-O also suffered a torn muscle during season eight dress rehearsal and was unable to perform the salsa live.
Former House Majority leader Tom DeLay withdrew from the competition in week three of Season 9 after injuring his foot during rehearsals before the premiere.
Billy Dee Williams had to withdraw from season 18 due to chronic back problems.
early exit; Billy Dee Williams retired early from season 18 due to chronic back problems
In season 21, two contestants dropped out of the mid-season due to health issues, with Kim Zolciak departing after suffering a mini-stroke and Tamar Braxton withdrawing after doctors discovered pulmonary embolisms in her lungs.
Pro dancer Mark Ballas injured his back during season 22 rehearsal and was unable to perform with his partner, UFC fighter Paige VanZant, for a week.
Pro dancer Sharna Burgess injured her knee during season 23 rehearsal with James Hinchcliffe and was out for two weeks.
Pro-dancer Maksim Chmerkovskiy suffered a calf muscle injury during season 24 rehearsal with Heather Morris and was replaced by dance group member Alan Bersten during a four-week recovery period.
Christie Brinkley broke her arm while practicing five days before the season 28 premiere and was replaced by her daughter, Sailor Brinkley-Cook.
Ray Lewis was forced to withdraw from season 28 after tearing three tendon tendons in his foot during practice ahead of week three’s movie night. He aggravated an injury from 2010 while playing football for the Baltimore Ravens.
Standing in: Christie Brinkley broke her arm while training five days before the season 28 premiere of DWTS and was replaced by her daughter, Sailor Brinkley-Cook
Country singer Lauren Alaina revealed during Halloween week of season 28 that she danced with “four bruised ribs,” breaking one in the show’s first week and noting that the others “don’t feel well.” .
The Bachelorette star Kaitlyn Bristowe suffered an “ankle injury” in the second week of season 29, but still appeared with pro partner Artem Chigvintsev. She later revealed during Disney Night that she suffered from tendonitis and shin splints.
Pro dancer Cheryl Burke announced on September 26, 2021 that she tested positive for COVID-19 ahead of the second episode of season 30. Her celebrity partner Cody Rigsby tested positive for the coronavirus a few days later and they continued to compete but danced in separate rooms.
Season 30 Olympic gymnast Suni Lee also jumped out to throw up after her performance on Queen Night, but rallied to stay in the competition.
Judge Derek Hough missed the season 30 finale after being diagnosed with a breakthrough case of COVID-19 and was replaced by his sister Julianne.
Professional dancer Daniella Karagach missed Elvis Night after she and four crew members tested positive for COVID-19 following the September 2022 premiere of Season 31 on the Disney+ streaming service.
Selma Blair, who announced in 2018 that she had been diagnosed with multiple sclerosis, retired from the competition in season 31 due to “excessive bone trauma” related to her chronic illness.
Valentin Chmerkovskiy missed Halloween Night in Season 31 after testing positive for COVID-19, and Mark Ballas appeared during the episode after missing rehearsal due to a “flare-up” in his lower back.
Derek was scheduled to perform during the season 31 live finale with his fiancé, Hayley Erbert, but she had sustained a shoulder injury in prep the day before and was unable to dance with him.
Coronavirus infection: Pro dancer Cheryl Burke announced on September 26, 2021 that she had tested positive for COVID-19, and her pro partner Cody Rigsby tested positive a few days later, forcing them to dance in separate rooms