“More likely than not, he has some bruising on his hand and they are trying to hide it,” Dr Boback Berookhim, a New York-based urologist and men’s sexual health specialist, told the Daily Mail.

“It could be from a blood draw, an insect bite or potentially from hitting his hand against something.”

A little histamine reaction to the needle’s micro-trauma is what causes that little elevated bump after a blood draw. This reaction usually goes away in a few hours, but in older persons, because their blood vessels are inherently thinner and stiffer, it might cause more significant bruising.

“President Trump is a man of the people and he meets more Americans and shakes their hands on a daily basis than any other President in history,” press secretary Karoline Leavitt claimed