Palm Reading Perspectives

Multi-Perspective Palm Reading: About Hands & how to make a Hand-Diagnosis

Why do Physicians check the Hand Lines of Newborn Babies?

with 20 comments

Normal hand lines.

Why do physicians check the hand lines of newborn babies? Most newborns have two major creases on the palm, neither of which completely extend from one side of the palm to the other. However, a common variant, found in approximately 4% of western newborns, a transverse palmar crease is frequently inherited as a familial trait. Although single palmar creases are also associated with the hand in Down syndrome and other genetic disorders, the absence of other abnormalities on physical exam should reassure the examiner that no further evaluation is necessary.

 

Abnormal hand lines: a 'single palmar transverse crease', a.k.a. a simian line.

The pattern of palmar creases varies substantially within the general population. The formation of palmar creases, which occurs between the second and fifth months of prenatal development, depends e.g. on fetal movement. Once the palmar creases are formed, they remain unchanged throughout life.

More subtle normal variations of palmar creases can occur for a variety of reasons, including family background, age, and race. Many physicians are aware of the association between single transverse or bridged palmar creases, previously known as simian creases and Sydney creases, respectively, and the occurrence of Down syndrome. Although approximately 45% of patients who have Down syndrome have single transverse palmar creases, this finding occurs unilaterally (one hand) in 4% and bilaterally (both hands) in 1% of the general Caucasian population.

HAND LINES IN CHINA:

However, in the Chinese population, single transverse palmar creases may be considered a normal phenotypic variant; a recent study found that 16.8% of 3,345 healthy Chinese newborns had unilateral single transverse creases and 6.6% had bilateral single transverse creases.

Despite the high frequency of single transverse palmar creases in certain populations, aberrations in the flexion creases of the hands have the potential to signify abnormal fetal development. The association of abnormal flexion creases and various congenital disorders has been reported frequently in the literature. Studies have shown an increased incidence of single transverse palmar crease in children who have chromosome abnormalities and in low-birthweight infants. Therefore, it is reasonable to search for other congenital anomalies when evaluating an infant who has a single transverse palmar crease after taking into account the patient’s race and familial background.

When the crease occurs in isolation, however, no further evaluation is indicated.

HAND STRENGTH:

Interestingly, these is also evidence that palmar creases (hand lines) and hand motorics are directly related!

In 2010 researchers from Korea reported results which suggest that union of hand lines (palm lines) appears to correlate with hand grip strength. And interestingly, a few months later a report from France presented results which suggest that hand strenght can be predicted from hand circumference alone. So, combining both reports indicates that a talent for hand strenght could very well be found in people who have a large hand circumference + fused hand lines, such as seen in simian line! An interesting hypothesis, which is suitable to be tested for it’s accuracy in the fields of modern palm reading.

Additionally, it might be interesting to notice here that the hand lines of apes (primates) are characterized by the presence of multiple ‘fused’ transverse crease. And Gorillas who are known as the strongest species among the primates have the widest (shortest) hand shape of all apes & primates.

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Written by martijnvanmensvoort

June 1, 2011 at 12:12 am

20 Responses

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  1. Is there a scientific study or findings about uneven palm lines between the left and right hands? Most people have their first crease on their hands connect when both palms are set side to side? I have seen one case that don’t, among almost everyone that i have encountered. Any articles about this?

    Angela Hernando

    February 28, 2013 at 5:55 am

    • Hello Angela,

      Thank you for your question. Can you please specify which line you have in mind?

      Your description suggests that that you are talking about the so-called ‘heart line’ (upper transverse crease), which usually is found at a simialar location regarding the ulnar termination of the line (below the pinky).

      In general, variations between both hands are possible for any aspect of the lines; and regarding the heart line any variation is possible especially when the heart line is featured with irregularities in one or both hands (such as in the case of a simian line – though I should add: the majority of simian lines is not featured with variations between both hands regarding the ulnar termination).

      Have I answered your question?

      (If not, you are welcome to specify you question!)
      :-)

      martijnvanmensvoort

      February 28, 2013 at 12:12 pm

  2. Hi my name is Mariah my son is 6 months he has only two creases in his right pinky instead of three that includes the bottom line that connects to the hand.Im worried that he may have down syndrome or anomalies.he also has a flat head that will not be treated after his tests.has this happened to anyone out there and ended up normal??????…..

    mireya

    March 31, 2013 at 1:50 am

  3. Hello Mariah,

    Does this implicate that your son only has on interdigital crease on his right pinky? And regarding his ‘flat head’, does this relate to back side of his head?

    My first thought would be: have you excluded Down syndrome? (I am asking because both characteristics are significant for Down syndrome, and especially the pinky characteristic is very common in Down syndrome – and it is very rare outside the so-called trisomy syndromes)

    Sorry, I need to have more info about your son’s hand in order to give you more specified feedback; but I hope this info will somehow becaome useful for you and your son.

    Greetings + best wishes from The Netherlands! :-)

    martijnvanmensvoort

    April 1, 2013 at 5:23 pm

  4. why palmar crease appear ?

    kavitha ravi

    April 8, 2013 at 7:27 pm

  5. Hello, although it’s a bit off topic, I had a related concern. Both of my pinky fingers have only a single line in the middle; similar to a simian hands single line. I believe their strongly related since the personality traits and details associated with simian handed individuals are very similar to that of my own. I was curious if you new more about the subject?

    Robert

    May 6, 2013 at 12:01 pm

  6. Hi Robert,

    Are you talking about a so-called ‘single interphalangeal crease’?

    This characteristic has a strong linke with some chromosomal abnormalities, and it known to be extremely rare (almost never seen) in people who do not have a trisomy syndrome; so, I would first recommend to consult an expert in order to find out if you really have this characteristic.

    Maybe you can share a photo of one of your pinkies?

    Anyway, thank you for your report! :-)

    PS. I can add that a large majority of people who have a ‘single interphalangeal crease’ on the pinky finger also have a simian crease.

    However, personality traits in people who have a simian line vary much more than what is suggested by the simian line theories (which are usually based on superstitious astrology-like stereotypes about people in general); but I can recommend to take a looks at this simian line survey (which also includes a problematic aspect because the significance of the results has not been assessed in the perspective of control group): http://handanalysis.com/survey_results.html

    martijnvanmensvoort

    May 6, 2013 at 12:33 pm

  7. Hi sir, can I send you the photo of my 6 month old baby for you to evaluate? I am a worried mom. Thank you.

    yza

    May 27, 2013 at 8:51 am

  8. i am very interesting about your posting article.Is crease usually find and should be have on down syndrome hand?

    thata

    June 6, 2013 at 1:59 am

  9. Hello,
    I found out that 3 of my 5 children have Simian Creases when examined by a pediatrician. I didn’t think anything of it because the only thing he state was that it was very rare. 2 of them have the fused lines on only one hand and one of my sons has th bilaterally. It has been about 10 years since he pointed this out to me and I never bothered to look it up. Now I see that it can be associated with other medical issues. My children do not present any other symptoms, but do I have any reason to be concerned? Or is this just simply a genetically inherited trait? Thanks for your anticipated reply!

    Missy

    September 8, 2013 at 11:26 am

    • Hello Missy,

      Great question! Yes, basically the simian line often represents just a genatically inherited trait.

      If you have not spotted other clues similar to the simian line on the hand and body of your children then there is indeed nothing for you to worry about – it’s just a ‘minor physical anomaly’. Only when multiple of such features are present then one can start looking for specific options for futher examination.

      I could also add that in Asian countries simian lines are usually observed in relatively large percentages of the population – often varying between 5% and 15%.

      I hope this answer is helpful for you!?
      :-)

      martijnvanmensvoort

      September 8, 2013 at 4:27 pm

      • Thank you for your reply; that is very helpful. My kids are not Asian so I assume that it is not as common among the caucasian race? Thanks for the info! :)

        Missy

        September 8, 2013 at 9:48 pm

  10. Hey ,
    i have a quick question.. are the lines instide the palm of your hands hereditary???

    Keelie

    December 7, 2014 at 5:40 pm

    • Hello Keelie,

      Well, scientific studies have revealed that some aspects of the major lines are inborn (and some aspects may be hereditary, though this varies from person to person); but many aspects of the individual lines can change during a life time – especially in the non-major lines. So, this also implicates that far most aspects of the lines are not hereditary.

      Helpful?

      martijnvanmensvoort

      December 7, 2014 at 7:36 pm

      • As far as the line that make the m? They change?

        Keelie

        December 7, 2014 at 8:48 pm


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