Knife logded in man's back      Photo:Courtesy 

Canadian Billy McNeely spent three years scratching an itch on his back only to be told it was a knife.

The three –inch blade was found in a lump that he had since he was stabbed five times in a fight.

Doctors stitched him up but never took X-Rays.

“I’ve done some jail time in the past. The guards rub over you with a metal wand detector, and every time it hit my back it went off, he said.

According to Mirror, the 32-year-old finally decided to get it looked at after he scratched his back and his fingernail caught on something.

Girlfriend Stephanie Sayine told CBC News: “I told Billy, ‘there’s a knife sticking out of your back.’ I was scared. I was ready to pull it out with tweezers.”