By Brian Ellsworth and Daniel Wallis
CARACAS | Thu Dec 13, 2012 4:04pm EST
(Reuters) - Venezuela's Hugo Chavez suffered bleeding after a six-hour cancer operation in Cuba, the government said on Thursday, adding to a stream of somber news about the ailing president's condition.
Chavez's health has worsened dramatically since he won re-election two months ago, casting doubt on the future of his "21st century socialism" project, which won him huge support among the poor but infuriated adversaries who call him a fledgling dictator.
Information Minister Ernesto Villegas said doctors used "corrective measures" to stop the bleeding that resulted from the 58-year-old Chavez's cancer surgery on Tuesday.