The 55-year-old former World Cup winner went through a similar operation around a decade ago and has battled ill health since his football heyday in the 1980s.
"He is walking and in good spirits," said Carlos Felipe Chaux, one of the surgeons who treated him, told reporters at a Maracaibo hotel.
Maradona will remain in Venezuela for at least 12 more days to recover, he added.
Suffering shortages of medicines and surgical equipment, Venezuela may seem an odd choice for the operation. However, Maradona has long been close to the country's socialist government.
Soon after the arrest of high-ranking FIFA officials earlier this year, Venezuelan President Nicolas Maduro suggested Maradona would be a good fit for the next president of the embattled football organisation.
Maradona captained Argentina in their 1986 World Cup win though less than a decade later, he was excluded from the U.S. World Cup finals for doping.
Drug-addiction, overeating and alcoholism had put a sharp end to an otherwise glorious career. He nearly died in 2000 after a cocaine overdose.
Yet, in 2010, he managed Argentina's national team at the South Africa World Cup.
(Additional reporting by Carlos Rawlins, Corina Pons and Liamar Ramos in Caracas, Hugh Bronstein in Buenos Aires; Writing by Girish Gupta in Caracas; Editing by Andrew Cawthorne and Christian Plumb)
