Well, the White House offered up an interesting reason why he has this large hand bruise. White House press secretary Karoline Leavitt told NBC News, "President Trump has bruises on his hand because he’s constantly working and shaking hands all day every day." Judging from the pictures with Macron, it appears it could be a possibility.

The White House has officially announced that U.S. President Donald Trump will undergo a physical examination at Walter Reed National Military Medical Center next month

President Donald Trump was spotted with a large mysterious bruise on his hand during a meeting with French President Emmanuel Macron, causing a frenzy on social media and prompting the White House to

A large bruise spotted on US president Donald Trump's hand has been explained after it sparked concerns.over the 78-year-old's health.

The White House has insisted dramatic bruising seen on Donald Trump's hand was caused by him shaking hands with people, but an NHS skin specialist says this is unlikely

The bruise on the back of the president’s right hand was visible during his visit with French President Emmanuel Macron at the White House on Monday.

The mystery behind the bruise on Donald Trump's hand has been revealed by the White House - and it's not down to the 78-year-old's health, officials have insisted

A large bruise appeared to cover the back of Trump’s right hand as he sat with his hands folded yesterday while meeting French President Emmanuel Macron. Social media users have speculated the bruise could be from IV infusions, thin skin, or the president’s old age.

Karoline Leavitt tried to tamp down speculation about Trump’s injury by claiming he shakes more hands “than any other president in history.”