A doctor in northern China's Xi'an removed 28 magnetic balls from a 58-year-old man's urinary bladder after he inserted them into his urethra. <br /><br />In the video, shot on October 27, the 28 magnetic balls can be seen stuck together and trapped in the man's urinary bladder.<br /><br />The doctor showed the colourful magnetic balls to the camera after using minimally invasive surgery to take them out from the man's body.
