A man in China, was surprised to learn that he had four kidneys, following a period of severe stomach pain.
28-year-old Wang Kailian of Guizhou, went to a hospital after suffering unbearable stomach pain.
Doctors took X-rays, which revealed that he had four kidneys inside him instead of two. The extra two fully developed kidneys were responsible for the pain as they became infected.
The pain was so severe that Kailian was not able to stand on his feet. After doctors removed the two extra kidneys, Kailian's pain disappeared.
Several members of Kailian's family suffer from abnormalities, as his father, grandmother and sister have extra fingers and toes on their hands and feet.