Katie Hopkins has said epilepsy has "plagued" her life since she was 19 as she prepared for brain surgery to treat the condition.
Writing in a column for the Daily Mail, the controversial media personality opened up about the procedure in which surgeons will remove part of her brain.
Talking about an outright cure, she wrote: "The odds aren't great."
However, the 41-year-old said she is undergoing the surgery to prolong her life expectancy.
"One day my epilepsy will get the better of me. And I am not prepared to sit around and wait for that day to come," she said.
The star of BBC One's The Apprentice will have her head shaved and spend four to eight hours in the operating theatre, followed by 24 hours in intensive care.
Hopkins said she had wanted to be the first female Army general, but her condition saw her "slung out" of the forces after completing the commissioning course at the Royal Military Academy Sandhurst.
It is also the reason her arms have dislocated 42 times in three years.
The LBC radio host, who has built a media career on her forthright opinions, told her 600,000 Twitter followers in November that she had to have two front teeth removed after a fall caused by her epilepsy.
When she was on Celebrity Big Brother in January last year, the Devon-born star had to sleep away from the other housemates due to her condition.
Fellow contestant and US TV presenter Michelle Visage discussed the moment she saw Hopkins have an epileptic fit one night during the Channel 5 reality show.
Talking on ITV's This Morning last year, Visage said: "She was fitting and I didn't know what to do."
The pair had a close friendship inside the Elstree house.
In her column, Hopkins said she waited to have the surgery until her three children, who are 11, 10 and seven, were old enough to be "brave and smart".
The combative broadcaster sparked controversy in the past when she said she would not employ obese people. She also said certain children's names denoted a lower class .
Hopkins said she had no regrets, writing: "When your life could be short you need to live it loud."