Pope Benedict XVI sustained a minor head injury while on a trip to Mexico last year which is being identified as the core reason behind his sudden resignation from the post.
Citing an Italian daily newspaper, BBC Thursday reported that the previously unpublicized head injury made the Pope to resign from the post.
Referring to the injury, BBC reported that a prelate who was on the trip with the pope told the Italian paper that Benedict XVI was injured when he was trying to move around his room in the dark not being able to find the switch for the light.
Despite the blow on his head, the pope continued his engagements in Mexico but the prelate said he knew that "the pope no longer had the physical strength to endure these long trips."
"The change of time zone, the burden of public commitments" was adding to his problems.
Quoting Italian media, BBC reported that it was soon after his trip to Mexico and Cuba last year that the pope announced about his possible resignation.
However, the Vatican reportedly cited the old-age as reason in his resignation and not a particular health problem.
Pope Benedict XVI Monday announced that he would resign from the post later this month and the new pope is expected to be chosen by mid-March.
The new pope will be chosen through a special meeting of cardinals at the Vatican City and the position once reserved to the Italians is now open to all, even non-Europeans including Asians and Africans.
Several candidates have been already nominated in the public to replace the present pope and Cardinal Marc Quellet from Canada is one of the leading candidates marked by oddsmakers.
To contact the editor, e-mail: