Fingerprints are ridged patterns created during fetal development.They develop while we are in our mother’s womb and are formed completely by the seventh month.

  • Some scientists believe that fingerprints may provide protection for our fingers or increase our sensitivity to touch. Studies have shown that fingerprints actually inhibit our ability to grasp objects.
  • Scientists have found that fingerprints are very important in the mechanism of touch. Without them, it’d be difficult for you to read information and interact with whatever you’re touching or holding in your hands.
  • They are unique because of the many variables that decide how each individual ridge is formed. Fingerprints are used to identify unknown victims, witnesses or suspects, to verify records, and most importantly, as links between a suspect and a crime.


Fingerprints of Twins

No two people’s fingerprints are the same.Even in the case of twins,although their DNA is same but fingerprints are different.It’s a misconception that twins have identical fingerprints. While identical twins share many physical characteristics, each person still has their own unique fingerprint.


Having no fingerprints is like wearing leather or medical gloves! You will find difficulties in scrolling up or down on your phone or unlocking your laptop or tablet?you can't feel the temperature correctly?


Each person’s fingerprints are unique, which is why they have long been used as a way to identify individuals. Surprisingly little is known about the factors that influence a person’s fingerprint patterns. Like many other complex traits, studies suggest that both genetic and environmental factors play a role.


Scientists have found that on objects touched by a specific person, there are special bacteria that are also unique. Unique bacteria is born in every fingerprint. With the analysis of those bacteria DNA, you can determine the identity of a person.


Ancient Babylon (2000 BCE):

Fingerprint impressions were used on clay tablets for business transactions and legal agreements in ancient Babylon.


Ancient China (3rd century BCE):

Chinese documents from the Qin Dynasty (221-206 BCE) describe the use of fingerprints as evidence in solving crimes.


Ancient India (2nd century BCE):

Ancient Indian texts, including the "Arthashastra" by Kautilya, mentioned the use of fingerprints for identity verification.


17th Century Europe:

In 1684, Dr. Nehemiah Grew, an Englishman, published a paper in the Royal Society journal describing ridges, furrows, and sweat pores on human fingers.


19th Century Europe:

Sir William Herschel, a British administrator in India, began using fingerprints for identity verification in 1858, marking the earliest known use of fingerprints in a modern system. He used fingerprints to sign contracts and documents.


1892 - Sir Francis Galton:

Sir Francis Galton, a British scientist and cousin of Charles Darwin, published the book "Fingerprints," which was one of the first comprehensive works on fingerprint analysis. He established the uniqueness and permanence of fingerprints.


1892 - Sir Edward Henry:

Sir Edward Henry, an Englishman, developed a systematic method for classifying fingerprints, which became known as the Henry Classification System. This system laid the foundation for modern fingerprint identification.


Early 20th Century:

The use of fingerprints for criminal identification began to gain acceptance in various countries, including the United States.


1924 - The FBI:

The Federal Bureau of Investigation (FBI) in the United States established its fingerprint identification division, which is now known as the Criminal Justice Information Services (CJIS) Division. It houses one of the world's largest fingerprint databases.


Modern Era:

Fingerprint analysis and identification have become a fundamental tool in law enforcement and forensic science. Automated fingerprint identification systems (AFIS) have been developed to enhance the speed and accuracy of fingerprint matching.

Today, fingerprint identification is widely used not only in criminal investigations but also for various applications, including border control, access control, and mobile device security. The uniqueness and permanence of fingerprints make them a valuable and reliable method of personal identification.

what is the biological purpose of fingerprints


Grip and Traction

One of the primary functions of fingerprints is to improve our ability to grip objects and provide traction when handling tools or grasping surfaces. The ridges and valleys on our fingertips enhance friction, making it easier to hold onto objects, climb, or manipulate tools. This adaptation likely contributed to our ancestors' survival and ability to perform fine motor tasks.


Sensory Perception

Fingerprints are rich in sensory receptors, including nerve endings and sweat glands. These sensors allow us to perceive tactile information about our environment. The patterns of ridges and valleys aid in detecting textures, shapes, and temperatures, which is crucial for our sense of touch and our ability to interact with the world.



The sweat glands found within the ridges of our fingertips play a role in regulating body temperature. Sweating through these glands helps cool the body when it overheats. The ridges and valleys of fingerprints may facilitate the distribution of sweat for efficient cooling.



While not their primary purpose, the raised ridges of fingerprints may provide some protection to the fingertips by dispersing mechanical stress and reducing the risk of injury when handling objects or engaging in physical activities.



Biometrically, fingerprints serve as a unique identifier for individuals within a species. This aspect of fingerprints is not directly related to their biological purpose but has become significant in modern society for personal identification and security purposes.


evolution of fingerpints

The evolutionary reasons for the development of such intricate patterns are not fully understood. Fingerprint patterns are complex and highly variable, and their ultimate biological purpose may have arisen through a combination of advantages related to grip, sensory perception, and environmental adaptation.

do fingerprints grow back


fingerprints development in fetus

Fingerprints do not grow back in the sense of disappearing and then reappearing. Once fingerprints are formed during fetal development, their basic patterns remain the same throughout a person's life. The unique ridges and valleys that make up your fingerprints are established by the time you are a fetus, and they remain relatively constant throughout your life.


Injury or Skin Damage

As people age, the skin's elasticity changes, and this can lead to minor changes in the appearance of fingerprints over time. However, the basic patterns usually remain recognizable.



The sweat glands found within the ridges of our fingertips play a role in regulating body temperature. Sweating through these glands helps cool the body when it overheats. The ridges and valleys of fingerprints may facilitate the distribution of sweat for efficient cooling.


Manual Labor or Frequent Friction

People who engage in heavy manual labor or activities that involve frequent friction on the fingertips (e.g., guitar playing, certain sports) may experience subtle changes in their fingerprints over time. Again, the fundamental patterns typically persist.

Fingerprints are left on things we touch because our skin's natural oils leave a residue on any surface that we come into contact with. The ridges on our fingertips contain sweat pores that emit sweat and oil. When we touch an object, these oils and sweat are left behind, creating a unique pattern that can be used to identify an individual. It is believed that these ridges serve an evolutionary purpose, allowing us to grip objects more securely. Fingerprints have long been used as a means of identification due to the fact that no two people have the exact same pattern. Modern forensic science uses fingerprint analysis to solve crimes and identify suspects. Whether you are aware of it or not, you leave your mark on the world with every object you touch.
One of the earliest well-documented cases of a murder being solved primarily through fingerprint evidence occurred in 1892. This case involved the murder of Thomas and Ann Farrow in England. The suspect, a man named Alfred Stratton, had left a fingerprint on a cashbox at the crime scene.The breakthrough came when Sir Edward Henry, who was instrumental in developing the Henry Classification System for fingerprint identification, used this case to demonstrate the effectiveness of fingerprint analysis. By comparing the fingerprint found at the crime scene to Alfred Stratton's prints, the authorities were able to conclusively link him to the murders. Stratton and his brother, Albert Stratton, were subsequently arrested and found guilty of the crime.