What causes this condition in toes?

Autism

>>8972381
cell division

>>8972381
Most commonly a mutation in the CR-729a haplotype

polydactyly

>>8972381
teenagemutantninjaturtleisisosis

>>8972381
Man, getting ingrown toenails on that thing must suck.

>>8972381
Shitty genes.

>>8972381
Of all extreme mutations of the outer body one could have, this seems like to be one of the least terrible ones. But must suck to find fitting shoes.

>congenital doubletoeism

>>8972445
awesome response i have no way of knowing if you're right though lol

>>8972381
i wouldn't be able to resist trying to cut them apart if i had that

>>8972381
Test the DNA of both nails. Compare them.

>>8972381
Thunderfoot.

File: 900px-Sirenomelia.svg.png (151KB, 900x900px) Image search: [Google]

151KB, 900x900px

>>8974221
boss level

>>8972381
they look like a alien

>>8972381
yo mama bangin a pig

>>8972381

Look into developmental biology, OP

Simply put there are proteins that cells produce/inhibit in order to establish axes around the body
It's a very clever way of cell communicating with each other and telling each other where they are localized in proximity to the axes, you left arm knows it's on the left side and produces a left hand with the proper rotation and positioning of fingers
although in most cases hands are produces in "bulks" and then cut into strips to make fingers

Now as we all hopefully know here on /sci/ all genes code for proteins and proteins only
So what has happened is that the cells in that person's toe had a mutation for a protein used in communication and hasn't established an appropriate axes and has told the wrong cells to specialize into making a toe

>>8972381
My toe inexplicably started hurting when I say that image.

>>8972572
heh

>>8975395
which one?

Are you Japanese by any chance. Top kek

>>8972381
Polydactyly + Syndactyly