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3 DNA tests for infidelity

Updated: Mar 26

An infidelity DNA test can be a useful tool if you suspect your spouse or partner of being unfaithful. In this article, we will explore the three most common infidelity tests and explain how they work. We will also discuss why it is important to understand the accuracy of these tests, as well as the limitations of each type of test.


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The infidelity test is a genetic analysis that allows for the detection of a person's DNA on an object or a surface. This type of test can also be used by the police to investigate crimes involving reports or evidence of bodily fluids; murder and assault cases often involve the collection of this type of evidence at crime scenes.



The semen detection test


The sperm detection test is a simple method to determine if the stains you have recently suspected may contain traces of sperm. The test is, in reality, a sperm detection that can be performed on any surface.


These samples are then analyzed by laboratory technicians, who determine either a positive or negative result.


You will not have access to the person's genetic profile.

This type of test can be done even if the sample is old. Since the goal is not to define the person's genetic profile, precision is not a significant factor. Therefore, laboratories can conduct detections on samples several years old.


Genetic Profiling Test


The genetic profiling test is a very precise method of determining if there is DNA on a surface or object. This analysis can provide you with various types of information:

  • Determines the number of DNA present. Indeed, it is possible to find the DNA of several individuals in a sample.

  • Determines the gender of one or more individuals. In addition to defining the number of DNA, the laboratory indicates the male or female gender of these DNA.

  • Establishes the genetic profile of the person. This depends on the quality of the sample. If your sample is very old, it is possible that the DNA on it has deteriorated over time. In this case, the laboratory will not be able to establish a genetic profile.


Swab saliva Comparison Test


The salivary comparison test is actually an option that may be offered to you after the genetic profiling test.


This test works by comparing the DNA in your saliva to that of the genetic profile established in the genetic profiling test. Of course, this option is only possible if the sample provided enough genetic information during the extraction.


The results indicate whether your DNA and the profile share identical genetic markers on your chromosomes, but it is important to note that if the result is different, you will not have access to the genetic profile.


It's all about consent; if the laboratory discovers a genetic profile for which consent has not been given, the genetic information cannot be shared with the test owner. However, you will know that the analysis is inconclusive, and it is not your DNA on the surface.


The accuracy of an infidelity DNA test can vary depending on the type of test and the sample.
  • The reliability of an infidelity DNA test can vary depending on the type of test. We recommend taking the test step by step and starting with sperm detection, as it is often sufficient.

  • Conduct the test with a recent sample. The older it is, the more likely you have undetectable DNA.

  • Use samples that belong to you and not samples for which you do not have consent.



Consent for an Infidelity Test


During an infidelity test, the laboratory takes great care to analyze a sample that belongs to the person making the request.


Here, consent is twofold, and the owner of the object can refuse to have the test done. As there is a high chance that their DNA is present, the owner can exclude their consent from the genetic analysis, especially if they are not the one ordering the test.


The second consent pertains to the DNA found on the object. If you wish to access the person's genetic profile, you must choose the option for salivary comparison with your sample. But if the result does not match, the laboratory will refuse to grant you access to the genetic information.


Note that it is impossible to use an infidelity test as legal or administrative proof.

An DNA test for infidelity is just one among several ways to find out if your partner has cheated on you. If you suspect your partner of infidelity, a DNA test is just a means to confirm your suspicions. However, it's essential to remember that there are many other ways to determine if your partner has been unfaithful.


Many individuals in this situation do not opt for a DNA test because they seek definitive proof of infidelity, even though this method can be costly and time-consuming. Instead, people consider hiring an investigation company that will monitor the movements of the presumed unfaithful partner without their knowledge and consent. This way, you can obtain reliable information about their activities, as well as photos or videos of them in the act!


Infidelity is a very serious issue in any relationship. Many couples have been able to maintain their marriage after infidelity has been discovered and addressed, but it can be very challenging for some individuals. If you want to know if your spouse or partner is cheating on you, conducting a DNA test may be a solution depending on your situation. It is also often used in paternity cases.



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