Can you imagine having a snail living inside your body?! That's exactly what happened to this 4-year-old boy.

According to Rachel Franklin, her son Paul fell and scraped his knee one day. And though they seemingly cleaned it well, within a few days it was swollen and hot to touch. Doctor's gave the young boy antibiotics, but the infection wasn't clearing up.

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Soon, Paul's mom decided to pop the inflamed section – and out came a SNAIL. Pretty crazy right?

Watch the video below to see a reenactment of the horrifying infection, as shown by Animal Planet's Monsters Inside Me.