evidence: Speculations about U.S. President Joe Biden suffering a bruise on his forehead surfaced on social media after his pictures with a cross of ash went viral. Biden marked the first day of Lent by putting a cross of ashes on his forehead. [...] "Biden has an "old person bruise" on his head. When my grandparents got those, we feared the worst and ended up being correct. Joe, get that looked at, bro. @JoeBiden #potus," tweeted another. [...] "If your watching fake news @CNN Biden has a big bruise on his forehead. Could he have fallen asleep again and banged his head?" tweeted a user.