Sharon Osbourne is no stranger to a glow-up.

The 67-year-old X Factor judge has spent the last 20 years nipping, tucking and boosting various parts of her body, culminating in a painful fourth face lift last summer that left her mouthing 'help me!' in agony after the operation.

The X Factor judge and manager of husband Ozzy Osbourne has splurged hundreds of thousands of pounds on plastic surgery, after losing more than 100lb in weight in 1999 thanks to her gastric bypass.

In the years since, Sharon has gone under the knife for a tummy tuck, a boob job (and another surgery to remove the implants after they started leaking), a double mastectomy, breast reconstruction surgery and abdominoplasty.

Sharon Osbourne
Sharon Osbourne looks dramatically different from back in the 1980s

She's also treated herself to a designer vagina, eyelift surgery, a thigh lift, butt lift and full body lift, as well as liposuction on her thighs to get rid of fat.

In addition, Sharon has happily admitted to years of Botox injections and various injectables to retain her youthful glow.

"There's not much I haven't had tweaked, stretched, peeled, lasered, veneered, enhanced or removed altogether," she joked in her 2013 autobiography Unbreakable.

"I don't think I'm as bad as some women - like Jocelyn 'Bride of' Wildenstein. But I won't be having any more cosmetic procedures."

But her vow didn't last long...

The star has glammed up with a return to her natural hair

A surgeon at GLOW by MYA explains to Mirror Online what Sharon might have had done next.

"I would suggest that Sharon has had a range of surgical and non-surgical procedures over the years to help her maintain a youthful appearance as well as change some of her physical features.

"While Sharon has previously discussed and publicly confirmed certain aesthetic procedures including a facelift, breast surgery, eye bag removal (blepharoplasty) and a tummy tuck (abdominoplasty), I believe she may have also had an upper/lower face and neck lift.

Sharon, pictured in 1989, was previously in the background as husband Ozzy's manager

"Scars from this type of procedure are normally hidden in the hairline and around the back of the ear to keep scarring discrete. The area at the bottom of the cheeks often referred to as the 'jowls' can start to sag with the natural ageing process as soft tissue becomes deflated over time. The surgical procedure will pull and tighten the skin to give the face a rejuvenated look."

The surgeon continued: "Blepharoplasty (eye bag removal) is where the excess skin and fat is removed from either the upper or lower eyelids, meaning that the eyelids are no longer hooded or droopy. The price of a Blepharoplasty procedure can range depending on the patient but will often be £3,900 to£7,500.

Sharon before her dramatic transformation in 1989
Sharon with daughter Amy and husband Ozzy in 1997, before her gastric bypass

"It is also possible that Sharon has had the non-surgical treatment of dermal fillers to her cheeks, often referred to as 'cheek fillers'. Dermal fillers can be used in this area to re-introduce structure and volume along the cheekbones.

"For many other women, fillers are used to plump up skin sections where volume is lost due to the natural ageing process. The procedure replaces soft tissue while filling in wrinkles and skin folds. Fillers can range in price depending on the area and amount used but are commonly priced between £150 and £500 per session."

Sharon Osbourne (pic: Getty)
Sharon has spent hundreds of thousands of pounds on plastic surgery

The expert continued: "I believe that Sharon may have undergone the non-surgical treatment of fillers to her lips as she appears to have a slightly fuller mouth compared to previous images. The provider has ensured her lips still appear extremely natural and in proportion to her facial features. The average cost of lip fillers in the UK can range depending on the provider and the amount of filler used, however, you can expect to pay anything from £200 to £1,000 per treatment.

"Sharon's eyes appear brighter and her eyebrows slightly lifted – this would suggest she may have had the non-surgical treatment of anti-wrinkle injections (also known as Botox). Sharon has most likely had Botox to her forehead and glabella (in between the eyebrows) as you can see she has a smooth forehead, lifted brow arch and a limited frown/expression.

Sharon, seen in January this year before her hair makeover, may never take her surgeon off speed-dial

"The procedure can give the appearance of smoother skin if patients are looking for a youthful appearance or can be used as a preventative measure to slow the appearance of wrinkles."

The surgeon added: "Sharon looks great and I believe she will regularly receive these non-surgical treatments to maintain her youthful appearance along with a healthy diet."