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
![Assessment of the Newborn: Physical Anomalies and Neurologic Issues, Palmar crease, Simian crease, and Pilonidal sinus | Alexander Street, part of Clarivate Assessment of the Newborn: Physical Anomalies and Neurologic Issues, Palmar crease, Simian crease, and Pilonidal sinus | Alexander Street, part of Clarivate](https://d3crmev290s45i.cloudfront.net/frames/1008357xxx/1008357363/1008357363-disc001-file001-frame00010-size-original.jpg)
Assessment of the Newborn: Physical Anomalies and Neurologic Issues, Palmar crease, Simian crease, and Pilonidal sinus | Alexander Street, part of Clarivate
![The simian crease: Relationship to various genetic disorders - Wahl - 2019 - Clinical Anatomy - Wiley Online Library The simian crease: Relationship to various genetic disorders - Wahl - 2019 - Clinical Anatomy - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/01262c41-b467-4572-98c2-cfb8162a5a0d/ca23432-fig-0003-m.jpg)
The simian crease: Relationship to various genetic disorders - Wahl - 2019 - Clinical Anatomy - Wiley Online Library
![I have a simian crease on my palm. Only 1.5% of the general population has this. : r/mildlyinteresting I have a simian crease on my palm. Only 1.5% of the general population has this. : r/mildlyinteresting](https://i.redd.it/gwiuwi3m57qy.jpg)
I have a simian crease on my palm. Only 1.5% of the general population has this. : r/mildlyinteresting
![I have a single transverse palmar crease which is a single crease that extends across the palm of your hand which is found in people with Down syndrome. Only 1.5% of people I have a single transverse palmar crease which is a single crease that extends across the palm of your hand which is found in people with Down syndrome. Only 1.5% of people](https://i.redd.it/iq4bnbis7m531.jpg)
I have a single transverse palmar crease which is a single crease that extends across the palm of your hand which is found in people with Down syndrome. Only 1.5% of people
![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?auto=webp&s=c5e622de14b03b4afae88a843be03cab38154de1)
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
![A) showed presence of Simian crease while (B) showed wide space with a... | Download Scientific Diagram A) showed presence of Simian crease while (B) showed wide space with a... | Download Scientific Diagram](https://www.researchgate.net/publication/283504041/figure/fig1/AS:736308578222092@1552561053810/Fig-2-A-showed-presence-of-Simian-crease-while-B-showed-wide-space-with-a-plantar.jpg)