There had been worry about the degree of the wounds after the two players must be supplanted in the second 50% of Belgium's 1-0 triumph over Portugal on Sunday in the round of 16.
"I can convey that the underlying data that we have from the clinical office is very sure for both," Martinez said on Monday.
"Eden and Kevin will stay with the crew."
Clinical trials for Kevin De Bruyne and Eden Hazard precluded any genuine wounds, and Belgium mentor Roberto Martinez said there is a "50-50" chance they will play in Friday's European Championship quarterfinal match against Italy.
There had been worry about the degree of the wounds after the two players must be supplanted in the second 50% of Belgium's 1-0 triumph over Portugal on Sunday in the round of 16.
"I can convey that the underlying data that we have from the clinical division is very sure for both," Martinez said on Monday.
"Eden and Kevin will stay with the crew."
Belgium is attempting to win a significant competition interestingly. The group completed in third spot at the 2018 World Cup.