Preval, who received treatment in Cuba for a bout with prostate cancer six years ago, traveled to Havana over the weekend after attending a conference in the Dominican Republic, spokesman Volce Assad said.
"The president went for a routine checkup that he has to do regularly with his doctors," Assad said, adding that Preval would return to Haiti on Tuesday.
The 63-year-old president revealed in December that blood tests showed possible signs that his cancer had returned, but he said later that further testing in Havana showed he was cancer-free, reports AP.
Preval was first diagnosed with prostate cancer in 2001, the final year of his first presidential term.
One hundred years ago today ended the most grueling of wars involving disgusting conditions for soldiers and at least 17 million deaths. We learnt nothing.
Russia will complete the operation of the Soyuz booster rocket already in 2019. It goes about the booster, which Russia currently uses for manned space flights to the International Space Station