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People Share 74 Medical Facts That Seem Impossible But Are 100% Real
It’s hard to believe anything these days without fact-checking it yourself. So one TikTok account asked people on the platform to share medical facts they heard that sounded completely made up, but are actually true.
From amazing insights into how we reproduce to the spread of disease, the answers didn’t disappoint.
Below, you will find some of the most surprising responses that might just teach you a thing or two about the natural sciences. It’s never too late to learn.
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#3
One of the very few definitive things in medicine is that no one who is born blind has ever developed schizophrenia.
Discussions like this one highlight a serious problem. Research by the World Health Organization found that health misinformation online isn’t just annoying — it can actually harm people’s well‑being.
The study examined 31 prior reviews and found that false or misleading health information spreads rapidly across social media platforms such as Twitter, Facebook, YouTube, and Instagram, especially during crises when people are desperate for answers.
That misinformation can fuel fear, panic, and confusion, and even delay people from getting the care they need. It’s also been linked to misinterpreting scientific evidence, increasing vaccine hesitancy, and pushing unproven treatments. What’s wild? In some viral health topics, up to half of the related posts were misleading. The WHO says the fix isn’t simple — but efforts like better digital and health literacy, stronger awareness campaigns, and higher‑quality mass‑media content can help push back against fake health info.
#4
when a woman is pregnant with a female fetus, she's also carrying the egg that could potentially be her own grandchild.
#6
When you get pregnant you can get implantation cramps and bleeding so its understandable how some pregnancies go unnoticed for so long. i got the cramps so horribly that i was doubling over in pain. i thought my ovary had twisted or something. So i went to the hospital and a male nurse kept telling me i was constipated. i kept saying i wasnt but he just wouldn't listen to me. I think all female understand when the feeling is in their uterus and not just their gut. so i schedule an appointment when my obgyn and forced them to give me an ultrasound because i knew something was wrong. Not only was i pregnant, it was twins.
#7
Sometimes in a heart transplant, they can leave the old heart inside and it works alongside the new one and it may potentially heal. It’s called a piggyback transplant, which is kinda cute.
#8
When you take pain medicine the pain does not stop, it just stops receptors from telling your brain
#11
There’s a condition that essentially makes you “allergic” to sunlight (porphyria cutanea tarda) and some people believe that’s where the vampire myth comes from
#12
After they remove your uterus they don't move anything back. As you recover and start walking more all your organs that were on top of your uterus slowly move into the space where your uterus was. It explains why you can get a bladder prolapse after hysterectomy.
#14
When you get a kidney transplant. They don’t replace the old kidney. They just put the new one near your hip.
#15
dogs can smell cancer before we can detect it with our screening systems. They detect a change in the biochemistry of their owners which changes their smell. There are serious trials going on to see if dogs can be used to detect early cancer in those genetically at risk.
#16
You can’t catch a cold simply by going out in the cold. It’s a virus that you need to catch.
#18
“Achoo syndrome” I have it, it’s basically when you sneeze when you step out into the sun because your sinuses get mixed up, so your brain tricks you into thinking that the bright light you’re seeing is irritating your nose
#19
Cranberry juice does not change your Ph to prevent you from getting a UTI. It makes the lining of your bladder slippery preventing bacteria from attaching.
#20
you can ALWAYS hear your heart beating, your brain just tells your ears to indefinitely ignore the sound
#21
Your brain has no pain receptors, which is why brain surgery can be done while the patient is awake and is a common procedure when surgeons are operating on parts of the brain that control speech, movement and memory
#22
The pain of sunburn is your cells literally taking their own lives, so they don't mutate into cancerous cells :)
#23
Leaches & maggots are still used commonly to seal wounds & clean flesh wounds respectively.
#28
I have a hereditary disorder that makes my body store too much iron- Hereditary Hemochromatosis. The treatment is bloodletting.
#29
People fall asleep and wake up in different stages. Ultimately falling asleep to REM sleep then (usually) slowly waking from that. If, for some reason; you should immediately wake from REM sleep to full consciousness you will be temporarily paralyzed for a few moments until your nervous system can catch up. Commonly referred to as "sleep paralysis."
#31
Over 100 baby boys pass every year due to complications from the cosmetic procedure circumcison.
#34
There's such a thing as water poisoning, aka Hyponytremia, where you drink too much water and cause a massive drop in the bodies salt levels. It can be fatal.
#38
Baby’s saliva will connect to mothers milk when baby is sick and tell the mothers body what antibodies it needs to get better.
#39
Mental illness episodes like schizophrenia/psychosis can be smelled. There is a specific odor that is excreted through the pores and sweat glands due to metabolic changes happening in the body during the episode.
#41
"The Placebo Effect" is proof that the brain knows how to heal our bodies naturally, we just don't know how to utilize its potential yet.
#51
your brain doesn't know your eyes exist, if it did, it would send your antibodies to eliminate them like tumors
#55
some people that have had a traumatic brain injury are sensitive to capital letters, especially if they are out of place, it causes pain and/or seizures for some.
#56
women get cold faster because their general body temperature is 0,3 - 0,4°c higher than that of a man. A difference in blood circulation also causes women to get cold feet/hands faster
#57
When you get sick symptoms are not from the illness. It’s from the war your immune system is fighting to defeat that illness.
#59
Our immune system doesn’t know we have eyes. If it finds out through illness or trauma it makes you blind.
#65
Twins have a bond like nothing else in human history. I was woken out of sleep when my twin passed. I sat straight up, looked at the clock and knew something horrible had happened.
#67
Some doctors are taught in medical school (to this very day- depends on the institution) that African Americans don’t feel pain or experience it like others; so they are medically ignored 99% of the time which often leads to an untimely demise.
#68
Your mind doesn’t know the difference between a thought and reality. That is why your mouth waters just by imagining eating a lemon.
#69
Emotions usually only last for 90 seconds, so if you still feel something (like anger), it means your being angry on purpose—you choose to be
#70
Alzheimer’s is stage 3 diabetes. Alzheimer’s can be caused by resistance to brain insulin which is common for people with type 2 diabetes.
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