Sushi-lovers listen up, your favorite meal comes with risks as one man in South Korea learned.

According to a case report that was published in a recent issue of the New England Journal of Medicine, a 71-year-old man had to have his forearm amputated after he developed an infection twelve hours after consuming raw seafood.

The unidentified man went to a South Korea emergency room after experiencing a fever for two days and "excruciating pain" in his left hand thanks to a dark, purple blister that had formed, covering most of his palm. According to the NEJM, twelve hours before the blister developed on his hand, the man had eaten raw seafood.

The culprit? A potent little bacteria known as Vibrio vulnificus. When doctors performed surgery on the blister, they discovered the man was infected by the bacteria that usually causes gastrointestinal distress, like vomiting, diarrhea, and stomach pain (but is occasionally referred-to as "flesh-eating").