The White House has explained a massive bruise on Donald Trump's left hand.
While at the World Economic Forum in Davos, Switzerland, the president was sporting a red and black bruise several centimetres in diameter.
But White House press secretary Karoline Leavitt said Trump bruised his hand after hitting it on the corner of a table.
READ MORE: Donald Trump appears to mix up Greenland and Iceland four times
"At the Board of Peace event today in Davos, President Trump hit his hand in the corner of the signing table, causing it to bruise," Leavitt said.
Though there were many cameras in the room, the moment does not appear to have been filmed.
This year the president has frequently had a prominent bruise on his right hand.
At other times, his hand has been covered in a thick coating of makeup or with a large Band-Aid.
The White House has said the bruise stems from shaking so many hands.
READ MORE: Wall Street cashes in as TACO Trump 'chickens out' on Greenland
But the president does not shake hands with his left hand.
Trump previously told the Wall Street Journal that he was taking 325mg of aspirin a day, more than three times the daily recommended dose unless you have pain, fever or inflammation.
"They say aspirin is good for thinning out the blood, and I don't want thick blood pouring through my heart," he said.
"I want nice, thin blood pouring through my heart."
A person with thin blood is more likely to bruise.
The Journal also reported his hand started bleeding after getting a high-five from now-Attorney-General Pam Bondi at last year's Republican National Convention.
READ MORE: Has Trump really ended eight wars? Fact-checking the president's claim
The White House has been loath to admit any physical malady from Trump, with a statement issued in December declaring his "excellent" health.
"President Trump's cardiovascular imaging is perfectly normal," his osteopath Sean Barbabella said.
"There is no evidence of arterial narrowing impairing blood flow or abnormalities in the heart or major vessels.
"All major organs appear very healthy and well-perfused.
"Everything evaluated is functioning within normal limits with no acute or chronic concerns."
Trump is 79, making him the second-oldest president of all time.
By the end of his term, he will be the oldest.
In Davos yesterday, Trump appeared to repeatedly mistake Iceland for Greenland.
In his speech, the president referenced Iceland four times in a context that seemed to fit his previous remarks on Greenland.
"I'm helping Europe, I am helping NATO, and until the last few days when I told them about Iceland, they loved me," he said.
"(NATO is) not there for us on Iceland, that I can tell you. Our stock market took the first dip yesterday because of Iceland.
"So Iceland's already cost us a lot of money."
READ MORE: Trump rants at Norway over Nobel Prize during rambling press conference
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