Search for  Maternity

I am looking for a biological mother and I am:

The Maternity Search is a guide that we offer you so that you can find the most suitable DNA test for your situation.

Anonymous , free , simple to use , you must answer a set of questions placing you in the position of a person looking for their biological mother.

Answers are not recorded and the results of this guide will provide you with information on the DNA test you need depending on the situation. 

Do not hesitate to contact us , or contact a laboratory if you have any additional questions on  information that the guide can provide you.   

How to do a Maternity search?

Genetic research is a powerful and useful tool when you have doubts about a parentage link between two people. This gives you the opportunity to use your DNA to prove a biological relationship and thus dispel a doubt about a family member, confirm your membership from a legal point of view or find unknown relatives.

Unfortunately when you want to do this type of genetic analysis, unlike a genealogy test which will only allow you to have relationship matches by percentage, you must compare the DNA of two or more individuals to have a reliable result on your parentage.

So the first thing to do in this situation is to know:


Who is available for the DNA test?

What is the family situation with this person?

Which DNA test to choose?

The search for a maternal filiation link can then be done with close members of the family of the presumed mother and depending on the participant  available, a choice of DNA test will be offered to you.

Who can participate in a maternity search?

As indicated  previously   to do a relationship DNA test, you must compare the DNA of several people to  define a maternal parentage link . For this, we propose in this guide to put you in the position of:  

- A man

- A woman

Depending on your profile, you will be able to do genetic analysis with: 

- The alleged mother 

- Your Brothers and Sisters

- Your Grandparents

- Your Aunt or Uncle

- First cousins

However, there are conditions for each of the participants and it is often recommended to include your biological father to improve the results of DNA tests, if possible.

What are the conditions for each participant?

Participation of siblings:  

Genetic analysis can be done between brothers and sisters or with only brothers and conversely only between sisters. Also, it is not mandatory  that  siblings share the same biological father for a maternity search with DNA test.


Doing a DNA test between a grandson or granddaughter and their grandparents is possible provided that both grandparents take part in the test. It is possible that genetic laboratories offer to do the genetic test with only one grandparent, but we do not recommend this  choice. Because the lack of genetic information will not allow us to provide you with a reliable and precise DNA result.

In addition, it is essential to specify that both grandparents must be the biological parents of the mother sought. 

Do a test with the aunt OR with the uncle:

You must choose the participant between your aunt and your uncle. Using DNA from both is not necessary to get quality genetic results and the lab may charge you for the test twice. On the other hand, it is very important that the participant chooses either the complete brother or sister of the presumed mother. (They must share the same biological parents) 


Genetic testing with a first cousin is possible. The DNA comparison will be done on the basis of the mitochondrial DNA which is transmitted only by the mother to all her children. The condition is that the cousin must be a descendant of your grandmother's female line. (Your aunt's son or daughter or any other female descendant exclusively)

What DNA tests are available?

Depending on your family situation and the participants, several DNA tests can be used to answer your doubt of maternity.

Maternity test

To perform a maternity DNA test, you must compare your genes to that  of a presumed mother  . This genetic analysis is the most reliable and the most direct way to confirm the parentage link between the children, boys or girls, and the mother tested. The biological father is not necessary, but can also take part in the test.

The Sibling test

In order to verify a common maternity between siblings, you can choose the sibling DNA test. The genetic analysis will present you with a percentage of relationship which can vary according to your genes, it is then more accurate to do this test with several participants (more than two) to improve the precision of the results. Also adding your biological father is highly recommended, but not required.

The grandparent parentage test

Gene analysis between grandchildren and grandparents can be done with this DNA test. Since the laboratory does not have the genetic profile of the alleged mother, it is important to be able to add   the genetic profile of your biological father if possible. The test can only be considered reliable  with the participation of both grandparents.

The avuncular test (Aunt & Uncle) :

The genetic test of relationship between a nephew and a niece can be done either with the aunt or with the uncle. We recommend crossing genders to have more distant genes and therefore a more reliable result: 

-Niece with uncle

-Nephew with aunt

The analysis is always in percentage of relationship, so it is always recommended to include the genetic profile of your biological father if possible.

The mitochondrial DNA test  : 

The mitochondria test is as reliable as the maternity test in the results. It will give you either a positive or negative answer depending on the family situation. This test can be done with male and female individuals to determine if they belong to the same maternal line. Participants can be: 

- Presumed mother

- Aunt

- Grandmother

- Brothers and sisters

- First cousins (  feminine / masculine )

Accreditation  & Reliability of DNA tests

The reliability of a test depends primarily on  the   accreditation of your laboratory . It is very important that the analysis methods comply with international standards in order to ensure a credible result. But you also have other factors to take into account to improve this reliability:   the type of sample, the choice of test and your declaration are elements that can have an impact on your test.

What samples can I use?

Choosing the sample is an important step in doing a DNA test . In general, laboratories recommend the use of buccal swabs. But depending on the situation, it can be difficult and the choice of another type of sample must then be considered. You must also respect conditions so that the sample provides enough genetic information for your DNA test .