Kim Kardashian is opening up about a major health scare.

In a preview clip of Season 7 of Hulu’s "The Kardashians," the Skims founder, 45, revealed that her doctors had discovered a brain aneurysm during an MRI scan.

In the clip, Kim is shown undergoing an MRI and later telling her family, "There was a little aneurysm."

As for the cause of the aneurysm, Kim said, "[The doctors] were like, ‘ Just stress .’ "

According to the Mayo Clinic, a brain aneurysm is "a bulge or ballooning in a blood vessel in the brain. If the brain aneurysm leaks or ruptures , it causes bleeding in the brain, known as a hemorrhagic stroke."

While brain aneurysms are common, most "aren't serious, especially if they're small. Most brain aneurysms don't rupture."

After sharing the news, an emotional

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