A Mexican man who ways about 500kg has been called the world’s fattest man. He has not left his bed in six years and now he is about to undergo an operation. The man, Juan Pedro Franco is 32-years-old. Franco is being taken to a medical facility so they can examine him to see if he can walk again. Evidently, his years of immobility has even forced him to gain more weight. Doctors hope to help him regain use of his muscles so he can start to lose weight. Photos of him being transported to the hospital have emerged and he looked quite cheerful as he took pictures and make phone calls.CLICK NEXT To SEE Photos