Simian crease is an older name for a condition now more commonly called single transverse palmar crease, or STPC. It refers to a single crease across the palm of the hand. In most individuals, there are two slightly offset creases across the palm.
What does the crease in your hand mean?
The lines on our palms are known as palmar flexion creases, and they’re there to help us fold, stretch, squeeze, scrunch and do other such things without excessively stretching or squeezing the skin on the hands.
Is Simian Line rare?
Simian line is a rare genetic disorder. Studies have indicated that the simian line is observed in 28% to 86% of people with Down syndrome (according various sources), while the simian line is seen in only about 1% of the healthy people.
How rare is a simian crease?
1 out of 30 people
The Simian crease appears approximately in 1 out of 30 people or 4% of Caucasians and about 13% of all Asians on at least one hand. It is even rarer to have this line on both hands.
Is having a simian crease bad?
Having a single palmar crease is often normal. However, it may also be associated with various conditions that affect a person’s mental and physical growth, including: Down syndrome. Aarskog syndrome.
Is simian crease hereditary?
Males are twice as likely as females to have this characteristic, and it tends to run in families. In its non-symptomatic form, it is more common among Asians and Native Americans than among other populations, and in some families there is a tendency to inherit the condition unilaterally; that is, on one hand only.
Is Simian Line genetic?
What causes a simian crease?
Causes of a single transverse palmar crease An STPC develops during the first 12 weeks of the development of a fetus, or the first trimester. STPC has no known cause. The condition is common and doesn’t present any health problems for most people.
Is a simian line hereditary?
Discussion. The simian crease is found in 5% of newborns and is frequently inherited as a familial trait. However, single palmar creases can be associated with Down’s syndrome and other genetic disorders, or with fetal alcohol syndrome.
How rare is Simian Line?
Is simian crease rare?
A single palmar crease occurs in about 1 out of 30 people, but is also frequently associated with other conditions such as Down syndrome, Aarskog syndrome or fetal alcohol syndrome.
What do the lines on your palm mean medically?
palmar flexion creases
Scientifically speaking, however, the lines on a palm, or palmar flexion creases, help the hand’s skin stretch and squeeze. They can also help identify certain medical conditions. That may also be why there are strong creases where the bones in the fingers and thumb meet.
What is the meaning of the term ‘simian crease’?
The older term “simian crease” is not used much anymore, since it tends to have a negative meaning (The word “simian” refers to a monkey or ape). Distinct lines that form creases appear on the palms of the hands and soles of the feet. The palm has 3 of these creases in most cases. But sometimes, the creases join to form just one.
What is the meaning of two simian lines?
Type two Simian lines may appear as a single heart line. The meaning of such line means that the heart overshadows the head. It means the feelings and emotions overpowers the thoughts completely.
Is it rare to have a simian line?
I had a simian line on both of my hands. Doubly rare! What does a Simian Line mean? It’s where the head and the heart line are merged into a single line (sometimes called a Simian Crease). This usually means it’s hard to separate logic and feelings.
What is the Simian Line in palmistry?
Everybody knows that there are three main lines in palmistry, namely life line, head line and heart line. For some people, the head line and the heart line overlap into a single line, which is called the Simian Line, Simian Crease or Single Transverse Palmar Crease.
