Sofia Vergara gave her 8.4 million Instagram followers a glimpse into her checkup on Tuesday.

The Modern Family star snapped a selfie in front of a mammogram machine, writing: "It's that time of the year."

The 43-year-old actress' pic brings awareness for breast cancer prevention, and it shouldn't come a surprise, given how open Vergara is when talking about her body.

WATCH: Sofia Vergara Goes Topless for Vanity Fair

Last year, she even opened up to Vanity Fair about the downside of having size 32F breasts. "My whole life, buying a bra was a nightmare," she admitted. "What I used to do when I moved to L.A., I found places like Frederick's of Hollywood that make bras for [strippers]. Believe me, I wish I had fake boobs. I lay down and they completely go down like all the way, like here."

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Vergara said her curves have a big effect on what she wears on the red carpet. "Sometimes you read in the press like, 'Oh, Sofía is wearing again the same shape dress,' and I want to answer them and say, 'What the f**k do you want me to wear?'" she proclaimed. "Obviously there's a reason why that's what I go for."

EXCLUSIVE: Ariel Winter Opens Up About Racy Instagram Pics, Building Her Confidence -- It 'Just Grew Over Time'

Vergara's Modern Family co-star Ariel Winter has also been very open when talking about her body, and her decision to get breast reduction surgery. In January, she faced some criticism when she showed up to the SAG Awards in a black Romona Keveza gown that showed her surgery scars.

"I knew I had scars but they didn't even cross my mind that I should cover them," Winter told ET. ""If I didn't think about them myself, clearly I'm not ashamed of them. I don't know why anybody would be. They're not going away."

Vergara through the years:

