Compartment syndrome is gross out me out .

1.Have you ever wondered what it looks like on an MRI when people kiss? Well, here ya go, and don’t blame me if you never want to kiss anyone again.

2.TIL that some people have fringed fimbriated folds — basically extra tissue under the tongue that never dissolved in the womb.

3.Here is what a heart that needs to be replaced looks like next to the healthy donor heart that’s going in.

4.And this is what a heart beating outside of a body looks like.

5.Here are the hands of someone withMarfan syndrome(a connective tissue–related disorder). They tend to have super-long fingers and limbs.

6.Some people withMarfan’salso have eyes that do this.

7.Did you know it’s possible to have a TON of extra teeth? It’s calledhyperdontia, and oftentimes it just means a few extra teeth — the case below is extreme.

8.Here’s another photo of hyperdontia.

9.Here’s what it looks like to havetriphalangeal thumb syndrome, where thumbs resemble fingers because they have three phalanges.

10.Here’s an X-ray of how bad arthritis can get.

11.This is what it looks like to have a bad muscle cramp.

12.This is what it looks like to haveParkes Weber syndrome,where your blood vessels are malformed. Yep — those are blood vessels.

13.Here is what an eye without a pupil looks like.

14.Here’s what exactly one year of hair growth looks like (a year earlier, she’d shaved her head).

15.This is what eyes look like in a super close-up.

16.And here’s a tooth in a hydraulic press that shows how strong teeth are.

17.Here is a terrifyingteratoma— aka a tumor that can grow teeth and hair.

18.Speaking of tumors — you can also have a hair-growing tumor on your EYE, meaning your eye starts to grow hair. I’m sorry in advance for this image.

19.This is what milk ducts look like inside women’s bodies.

20.Did you know that if your body produces too much keratin, your tongue can growthis?

21.One of the scariest disorders to me isfibrodysplasia ossificans progressiva,also called “stone man syndrome,” in which skeletal muscles and connective tissue slowly turn to bone, and joints begin to fuse together.

22.This person, who hashereditary multiple exostoses, aka hereditary multiple osteochondromas, also has extra bone growth — in this case, bone tumors that grow off longer bones, like the arm bones here.

23.This woman was electrocuted through her landline during a storm, and the pattern it created on her neck, known as aLichtenberg figure, is honestly really cool (though I definitely have a new fear unlocked).

24.Another fear of mine isepidermodysplasia verruciformis, or “tree man” syndrome, where these growths that look like bark form on your body.

25.Bone cancer is also terrifying — check out what it did to this person’s skull.

26.This is whatStevens-Johnson syndrome— wherein a rash forms on your skin, blisters, then sloughs off — looks like on someone’s TONGUE. And it could happen to you. It’s usually a reaction to medication.

27.Here’s what it looks like when someone hascompartment syndromeand essentially must have their skin left open to relieve pressure.

28.And here’s what it looks like a year after it’s healed.

29.Here’s what it looks like to have your finger amputated — but the tiniest bit of the nail bed is left.

30.Here’s what it looks like when you get Lyme disease from a tick bite.

31.Here’s what can happen to your hand at extremely cold temperatures if you havecutis marmorata.

32.This is what it can look like to havecomplex regional pain syndrome, a form of chronic pain that can cause swelling.

33.Mirror footsyndrome is when people have feet resembling two mirrored feet fused together. It’sextremely rareand usually treated with surgery if it impedes walking and wearing shoes.

34.Here’s another example of polydactyly (when you have extra fingers or toes).

35.Here’s what the skull of someone withProteus syndrome— where your limbs and tissue, among other parts of your body, grow too much — looks like.

36.And finally, did you know that it’s possible to have no nails? It’s calledanonychia congenita.

Blurred MRI image of two people tongue-kissing

Close-up of a person's mouth with their tongue sticking out, showing "tentacle-like" protuberances on the bottom

Two hearts, the old one, with lots of fatty areas, on the left and the replacement on the right, displayed on a surgical cloth

A beating heart connected to medical equipment in a clear tray

Open hand with very long, thin  fingers spread against a blurred background

Close-up of a person's eye blinking rapidly and looking from side to side

Side-by-side X-ray images of a human skull showing dozens and dozens of teeth  in many rows and jaw structure

Four images of a mouth with two rows of teeth on the bottom, and after four have been removed

Two hands placed flat on a surface, with fingers spread apart, showing elongated, slim thumbs

X-ray image of two hands showing the finger bones/phalanges bent at unnatural angles

GIF of a person's hand gripping unnaturally

Two hands and arms covered with thickened, bulging blood vessels

Close-up of a person's eye with no pupil, just iris

Person with shoulder-length wavy hair in a room, text on face covering features reads "Jan 1st 2022"

A close-up of a human eye with veins resembling a forest of leafless trees

A hydraulic press compressing a tooth with a displayed force of 600 kg

Large, mottled tumor resembling a face with teeth, resting on a gloved hand

Close-up of a reddened eye with thin strands of hair emerging from it

Anatomically detailed illustration showing muscles, milk ducts, and other breast tissue of human upper torso

Close-up of a person's tongue displaying what looks like thick hair in the center

A person's distorted back showing a protuberance above the ribcage

A close-up of a person's bent arm over denim-covered legs, showing a sharp protuberance extending from the elbow under the skin

Close-up of a person's neck showing a red rash pattern that looks like tree branches, aka Lichtenberg figures

Feet with advanced barnacle growths standing on a blue wooden surface

Skull with a huge, jagged gap where one eye socket is

Close-up of a person's mouth showing a tongue with pale, dripping growths

Close-up of a person's limb showing staples and a huge, open incision

Close-up of the same arm extended, showing a deep indent on the bottom showing bone, no flesh

Close-up of a finger with no nail, but a tiny, needlelike tip growing on top of it, backlit by a light source

Person with a red, irregular skin reaction on their lower arm with what looks like an insect bite in the middle

Close-up of a hand showing a speckled, mottled skin inflammation

Two hands on a flat surface showing one of a normal size and the other with blotchy skin and extremely thickened fingers

Two images showing the top and bottom of an infant foot with eight tees and one large toe in the center

Hand with seven fingers

A skull with huge bulging parts on the front and bottom

A hand with no nail beds and a foot with toes with no nails