People are baffled by this selfie for a rather surprising reason

Another day, another image going viral on the internet.

The latest image features a woman posing for the camera but there's something about it that has people freaking out a little. It was originally posted a number of years ago here but it has now started to go viral again in recent days. You're probably wondering why such fuss has been caused because of this photo and the reason why takes serious concentration. Even that, it's not exactly something you'll notice unless you're specifically looking for it. The woman appears to have an extra finger and people are going crazy trying to establish if this is the case or not. According to The New Zealand Herald, it's been driving people up the walls completely with one person writing:

"I looked for ages and couldn't see anything,"

Of course, this isn't the first viral image to have people wondering what's going on and the number of optical illusions doing the rounds of late is crazy. See below, if you feel like teasing your brain of a Friday evening.

PIC: This Photo Of Girls Is Wrecking People's Heads https://t.co/RHpsHYS7uW pic.twitter.com/pLinL3ws6q

— Her.ie (@Herdotie) March 20, 2016

WTF is this wizardry? ? https://t.co/FQHTK39ypH — Her.ie (@Herdotie) May 28, 2016

Once you see this you won't unsee it. https://t.co/wRbrENXhov

— Her.ie (@Herdotie) May 17, 2016