Probably, a new operation is needed, he says from his sickbed in a video on the X platform.
The 70-year-old Bolsonaro, who was president from 2019-2022, has had recurring health problems due to being stabbed in the abdomen during an election rally in 2018.
The former president has been banned from running in the 2026 presidential election, but still hopes for a comeback and was about to start a tour of the state of Rio Grande do Norte when the new stomach problems arose.
In late March, Brazil's Supreme Court announced that Bolsonaro will be put on trial for attempting to stage a coup after the 2022 election defeat.