The Pentagon prompted that other 27 troops have been transported to Germany for further evaluation, with 21 of them were subsequently moved to the United States.
At a news conference last month at the Pentagon, Army General Mark Milley, chairman of the military's Joint Chiefs of Staff, said that 34 American service members had been diagnosed with injuries and that the severity of the injuries were mild.
More than 100 members of the USA armed forces have been diagnosed with traumatic brain injuries (TBI) from the after-effects of the ballistic missile attack carried out by Iran on Iraq early last month, Pentagon said. "We will continue to provide updates as they become available", she said.
The Pentagon has said the rising number results from the mild form of injury which means symptoms take time to manifest.
When asked about possible traumatic brain injuries, Trump said: "I don't consider them very serious injuries relative to other injuries I have seen".
Less than two weeks ago, the Pentagon said 64 American military personnel were diagnosed with traumatic brain injury in the wake of the Iranian missile strike on Ein Al-Assad. "This is a snapshot in time and numbers can change", Farah acknowledged.
Trump's initial downplay of their injuries as "not very serious" prompted rebuke from USA veterans groups.
While it remains unclear exactly how severe the injuries are, veterans groups and traumatic brain injury awareness advocates have sharply criticized the president's comments. "But I would say, and I can report, it is not very serious".
The US president and the Pentagon initially claimed no service members were killed or wounded, and they signaled that Washington was not looking for additional armed conflict with Tehran.
The leader of the elite Quds Force had pursued "stability and calm in the region", Hassan Rouhani said on Monday in a speech broadcast live on state TV. But the disclosures following Tehran's attack have renewed questions over the USA military's policy regarding how it internally reports suspected brain injuries and whether they are treated publicly with the same urgency as loss of limb or life.