REAL Housewives of Orange County star Emily Simpson is undergoing surgery today to remove DDD breast implants.

She also underwent a tummy tuck after major weight loss.

Emily, 44, took to Instagram on Sunday to reveal she was going under the knife at 7:30 a.m.

The housewife had previously talked about her plans to remove her breast implants now that she was losing weight, as she wanted to look more natural.

She first wrote on Sunday: "Good morning my lovely friends, tomorrow is my breast implant removal surgery and life and reverse tummy tuck."

She then prompted RHOC fans to ask her any burning questions.

One fan first asked why exactly she was choosing to remove her implants.

The mom of three said: "I put in silicone implants four years ago and I feel my arthritis and joint pain increased significantly after doing this.

"I researched and read a lot about breast implant illness so I decided to remove them for health reasons.

"Originally I thought I could just replace them with saline implants but my doctor informed me that even saline implants are covered with a silicone shell.

"So the only way to be completely silicone free is to remove and not replace!"

She further revealed that some of her symptoms included depression, weight gain, fatigue, and severe joint pain.

Another fan asked her what she thought her breast size would be after and she replied: "I actually have a lot of my own breast tissue and my doctor thinks I'll be about a C cup after the removal.

"After the surgery and healing process if I think I'm too small (I just want to be proportionate) and want more volume, there's always the option of having a fat transfer later."

She also described her current breast size as "melon sized."

She also dived a little into what a reverse tummy tuck was and said: "It's where the loose skin on your stomach is pulled tight upwards towards the breasts and then stitched underneath the breasts so there is no scar showing."

The Bravo star also assured her fans that she will be posting before and after photos of her body and that she will be "100 percent honest" about post-surgery pain.

The busy mom also talked about how her husband Shane is going to be the one in charge of taking care of their children for the next two weeks.

She also had to defend her decision to get the surgeries after a troll slammed her for "risking so many surgeries that aren't necessary."

"I had my hip replaced last year and it was necessary," she said.

"I couldn't even walk and I was in severe chronic pain. I'm removing my implants because I feel it's the the best decision for my overall health.

"This is a stupid and judgemental question."

Another fan also complimented her on her figure and said: "You look amazing. How much weight did you lose?"

"I don't know exactly," Emily said.

"I don't weigh myself much. I always weight a lot so I measure my progress by BMI, I'm done about 10 percent body fat."

Emily has been very vocal about her weight loss journey these past few months.

She even talked about how Shane supports her but still loves her at any weight.

She said in an interview: "It didn’t matter if I was 20 pounds heavier or 20 pounds lighter.

"He’s still very … he grabs my butt all the time and he smacks me on the ass all of the time and he constantly talks about sex all of the time, so I don’t think 20 pounds or 30 pounds makes any difference to him at all.

"He loves the curves no matter what."

Emily also shared she's in a much better place coming into this season than last year on RHOC.

She shared: "“I was probably at the lowest of lows last season.

“So I felt like coming into this season, I was a new person. I felt better mentally.

"I felt better physically and I just wanted to have fun with filming and not feel like I always had to be on the defense all of the time."

The RHOC season premier saw Emily update viewers on the state of her marriage after the couple went through a rough patch last season.

She admitted: "I think 11 years [of marriage] is huge because we probably hit rock bottom last year.

"I think it's my fault because I didn't recognize that he's a great dad and a great husband. And then coming out of surgery I felt like I had a whole new life — and he was there with me to share that and move forward."

In the episode, Emily told Shane on the anniversary dinner: "You've been amazing. Seriously. Last year was really bad because I was in a lot of pain. I couldn't even bend over and put my underwear on."

At last year's BravoCon Emily also defended her marriage to fans saying: "I understand that people have opinions because of what they see, but obviously there’s more to someone’s personality than just what’s on the show.

"At the end of the day, I try not to take it personally. It’s my life, it’s my marriage, it’s my husband, and that’s just the way it is."

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Emily and Shane share three kids: daughter Annabelle and twins Luke and Keller.

She is also the stepmother of Shane's two kids from a previous marriage: Shelby and Chanel.

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