The Emmerdale actress went from a size 30 to a size 14 after adopting a complete lifestyle change and giving up alcohol.
However, Lisa has now revealed that her drastic weight loss has resulted in excess skin and drooping breasts, which she plans to now solve with surgery.
Speaking on Loose Women, Lisa said: 'I'm planning to have surgery now.'
'Basically I've been left with a lot of droop - a hell of a lot of droop - and that needs looking at.'
However, instead of traditional breast implants, surgeons will use existing skin tissue to help re-shape her breasts.
'I don't actually need to prosthetics, the implant now,' Lisa added. 'I've got so much good tissue in my armpit now that literally dangle out like it's little two wings under my armpits that they can actually make a new bubba.'
When fellow panellist Kaye Adams asked what would happen to her current breasts, she responded: 'Well they need help please Kate. They need help so they're going put that inside and they take the areola off and everything'.
While admitting to feeling a little bit scared about the process, calling it a 'major operation', she said the outcome will be worth it.
'When I look in that mirror and seem my new little apples, it's really nice'.
Lisa also revealed that she's looking forward to having smaller breasts after admitting to struggling to eat on a plane before she lost the weight.
'The best thing for me ever is I get on an aeroplane and I order a drink and say "Yes thank you" and the tray in front comes down,' she explained. It used to sit on me so the drink wouldn't even rest it was always in my hand. So now the tray comes down and the drink goes on!'