Australian scientist Dr Karl has revealed the reasons why paper cuts hurt so much.
The popular doctor explained paper cuts often cause more pain and discomfort compared to cuts caused by other materials, such as metal.
'Paper, which we use everywhere, is exactly the right thickness to cut you,' he said in a TikTokvideo.
Dr Karl went on to explain there's three reasons why the cuts are so painful.
'Firstly, the paper is jagged, so it wrecks the flesh to a nasty degree internally,' he began.
'Secondly, there's debris on the surface from the manufacturing process and that can irritate the pain sensors.'
He added how the paper itself could be bleached with harmful chemicals which can also cause pain.
Dr Karl said the reason why tissue paper doesn't cause cuts is because it's 'really fine' with no 'structural integrity'.
The popular Australian scientist said paper cuts hurt so badly because paper is 'jagged', there's debris on the surface from the manufacturing process and it could be bleached with chemicals
Dr Karl said: 'Paper, which we use everywhere, is exactly the right thickness to cut you'
Likewise, the paper used to make postcards is 'a lot stronger' and is 'too thick' to cause a paper cut.
However, it is possible to get cut by cardboard.
According to Healthline, paper cuts usually aren't serious and will take two or three days to heal.
To treat the cut and ensure it doesn't get infected, wash your hands regularly, apply a Band-Aid, wear gloves if needed or apply an antibiotic ointment if the cut is deep.
Dr Karl's insightful video has since exceeded more than 12,000 views and many thanked him for sharing the information.
'Paper cuts and stubbing your toe are always the last injuries you'd expect to hurt so much,' one person commented.
'I've gotten a cut from a postcard-like material, it hurt so bad,' another wrote.
'Love it, thank you Dr Karl,' a third added.
It comes as Dr Karl revealed the unlikely physical and neurological benefits of walking backwards - and why you shouldn't let 'looking funny' get in the way of your health.
The beloved doctor saidretro ambulation strengthens the muscles on the front of your thighs and the muscles on the back of your buttocks.
'It puts less of a load on the knee joint on the inside and the back so you don't get any extra pain there,' he said in a video.
Scientists also previously found that walking backwards boosts your short-term memory.
Studies show that retro walking can sharpen people's minds, and help those with knee osteoarthritis and chronic back pain.
Dr Karl said walking backwards improves your sense of proprioception - which is when you know where your body parts are.
'You're less likely to trip and fall because you're walking in an unusual way because of that sense.'
Dr Karl recommended starting with30 second bursts of walking backwards at one-third normal walking speed.
Dr Karl previously revealed the physical and neurological benefits of walking backwards
'By the time you're able to walk 10 minutes at normal speed, you are so much stronger!' he said.
However, you should beware that walking backwards can increase your likeliness to fall and hit your head.
Dr Karl recommended taking a guide and taking turns walking backwards for an added layer of safety.
Many Australians shared their thoughts on retro ambulation.
'My chiropractor told me this and emphasised side walking as well,' one said. 'It helped rejuvenate my sacroiliac joints.'
'I lived in Shanghai years ago and an old man walked backwards up the street every day with a 4L bottle of water in each hand,' another shared.
'I knew he was onto something.'
