Question 1

what to do if i have one simian crease on my hand?

Accepted Answer

Normal variation: The incidence of a single palmar crease varies among different ethnic populations around the world. (14-70%) It is thought to be influenced by positioning in the womb during pregnancy.

Question 2

is it rare to have a simian crease on both hands?

Accepted Answer

It's rare: It might be ~ 0.5-1% in the population. 
It's minor deviation and doesn't mean anything if no other signs or symptoms present. It's commonly associated with Down syndrome or trisomy 21.

Question 3

what does it mean if i have a simian crease on both hands?

Accepted Answer

Can mean nothing.: This is usually associated with syndromes like fetal alcohol syndrome, and the trisomies like down's syndrome, etc..  But it does not have to be associated with them or anything.  To have it on both hands is rare: %5 population.  It is apparently more common among asians and native americans than among other populations.

Question 4

please help! i have a simian crease on both hands. what does this mean?

Accepted Answer

Single palmar crease: Single palm creases are believed to develop around 12 weeks gestation.  Any insult to the developing fetus can produce these creases and associated neurologic defects.  They are commonly associated with Down's Syndrome, other genetic defects, neurologic disorders and possibly Fetal Alcohol Syndrome.  They are present in a small percent of the population with no other significant issues.

Question 5

i know it's 1 in 30 to have a simian crease on one hand. what are the odds of having a simian crease on both hands?

Accepted Answer

Not quite sure: It depends from your racial and ethnic descend. It seems like in western populations it's quite rare, but in asian population is much more common. The lowest prevalence have swiss, eskimos, dutch populations.

Question 6

what does it mean to have simian creases on both hands?

Accepted Answer

Simian crease: Simian crease occurs in about 1 out of 30 normal people, but is also frequently associated with other conditions such as down syndrome, aarskog syndrome or fetal alcohol syndrome.

F.

Question 7

how rare is it to have a simian crease (a single palmar crease) on both palms without having down syndrome?

Accepted Answer

Fairly common: A single sided simian crease is found in about 10% of the population, whereas having it on  both palms is found in about 5%. When a condition is seen in  this many people, it is considered somewhat common. Many more people who have a simian crease have normal chromosomes than have down syndrome.

Question 8

what is simian crease?

Accepted Answer

Palm lines: Most folks have two lines across the palm joining the side below the little finger with the space between the thumb and index finger. If only one is present, as in some monkeys ("simians") & in 1% of normal folks, it's a tip-off that the person may have another birth defect, especially trisomy 21, but ultimately it's of no use as the other defects will be obvious.

Question 9

what is a simian crease/line?

Accepted Answer

Single palmar crease: Simian crease is a single line that goes across one's palm without a break in the crease or line. In some people this finding can be associated with down syndrome.

Question 10

do all down syndrome babies have the simian crease?

Accepted Answer

No: Only 50-60 percent of children with Down syndrome actually have  simian creases.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Simian crease hand

A member asked:

What to do if i have one simian crease on my hand?

A member asked:

Is it rare to have a simian crease on both hands?

A member asked:

What does it mean if i have a simian crease on both hands?

A member asked:

Please help! i have a simian crease on both hands. what does this mean?

A member asked:

I know it's 1 in 30 to have a simian crease on one hand. what are the odds of having a simian crease on both hands?

A member asked:

What does it mean to have simian creases on both hands?

A member asked:

How rare is it to have a simian crease (a single palmar crease) on both palms without having down syndrome?

A member asked:

What is simian crease?

A member asked:

What is a simian crease/line?

A member asked:

Do all down syndrome babies have the simian crease?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?