Do all people with Down syndrome have a simian crease in their hands? I have Down syndrome, but I don't have a crease in either of my hands. - Quora
Michiana Down Syndrome Family Support & Advocacy Group - Day 27 Down Syndrome Awareness Month: Look at your hand. Do you see the creases on your palm? These are called palmar flexion
![My palms are the only ones I've ever seen with only one line going straight across. Everyone else has two diverging lines, as far as I know. : r/mildlyinteresting My palms are the only ones I've ever seen with only one line going straight across. Everyone else has two diverging lines, as far as I know. : r/mildlyinteresting](https://external-preview.redd.it/WjbYt8CVDmshBxt720EUYmrHqxqZO6Z4VBXqSS9zjPc.jpg?width=640&crop=smart&auto=webp&s=9adede37ca7c4b0323f537e963ee2fb59b21e561)
My palms are the only ones I've ever seen with only one line going straight across. Everyone else has two diverging lines, as far as I know. : r/mildlyinteresting
I have a Simian crease on both hands. Can anyone tell me its significance? Both its pros and cons. - Quora
![Single Transverse Palmar crease in 5% of intants inherited familialy and in Down's Syndrome. | Neonatal nurse, Pediatric care, School of medicine Single Transverse Palmar crease in 5% of intants inherited familialy and in Down's Syndrome. | Neonatal nurse, Pediatric care, School of medicine](https://i.pinimg.com/originals/4f/e5/7f/4fe57f9fae42a04eafc797bca2bf81a4.jpg)