Angolan president returns home after health checks
The party confirmed for the first time on Monday that dos Santos had undergone medical checks while in Spain.
Dos Santos's medical condition has recently been subject to fierce speculation, with his daughter Isabel forced to deny rumours that he had died while in Spain.
Anastacio de Brito, spokesman for the ruling MPLA party, told AFP that the 74-year-old president arrived back in Angola on Monday evening.
The party confirmed for the first time on Monday that dos Santos had undergone medical checks while in Spain on an extended "private visit".
Dos Santos, who has been in power since 1979, will not contest an election in August, marking a historic change in the oil-rich country.
He has reportedly received cancer treatment in Barcelona over several years.
Defence Minister Joao Lourenco has emerged as Dos Santos's chosen successor and is on course to take power after the election.
Opposition parties have called for the government to be more transparent about the president's health.
JOIN OUR PULSE COMMUNITY!
Eyewitness? Submit your stories now via social or:
Email: news@pulselive.co.ke