Yellow Wiggle Emma Watkins has been forced to pull out of a tour for surgery to treat her painful endometriosis.
In a statement, the Wiggle apologised to fans and said she would not be attending shows in South Australia, New South Wales and Canberra over the next five weeks.
"I have been in a lot of pain for the past couple of years and on advice from my specialist, a difficult decision has been made for me to be urgently admitted to hospital to have an operation to manage the pain that endometriosis has brought on," Ms Watkins said.
Endometriosis is a painful condition where the lining of the womb grows outside of it in other parts of the body.
It causes chronic pelvic pain, especially during menstruation, and can cause infertility in up to half of those affected by the disease.
A 2015 study funded by the Bill and Melinda Gates foundation estimated at least 10.8 million people live with the disease, but other estimates put the number much higher.
I would like to send my love to all the other women experiencing symptoms of endometriosis, it is such a debilitating and painful disease," Ms Watkins said.
"I urge anyone suffering with the symptoms of endometriosis to put your health first and get a diagnosis so that you are in the best position to manage this crippling disease."
Watkins joined the children's entertainment group in 2010, replacing Greg Page.
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