The test, which one should do every two years from the age of 25, is a method of detecting abnormal cells on the cervix.
Speaking on her weekly Fubar radio show, the former glamour girl made the startling admission after her co-host began talking about her past births, reported Daily Mirror.
"I thought by having babies you get checked. I'm not being crude, I just presumed they check for everything. I haven't had a smear for... I don't remember the last time. I'm going to have to get one," Price said.
"I wish I was like Kim Kardashian - she's stunning," she said.