Postnatal DNA Paternity Testing


Who should choose postnatal DNA paternity testing?

Postnatal DNA paternity testing is commonly used by individuals and families who are able to wait until the child is born to perform paternity testing, in cases where prenatal testing is not possible, or where the child is an adult.

Postnatal testing is the most common type of DNA paternity testing and has been successfully used in legal proceedings.

How is postnatal DNA paternity testing performed?

Postnatal testing is quick and painless. DNA is collected from each party by swabbing the mouth with sterile buccal swabs.

After the collection is complete, the samples are packaged and shipped to the laboratory for testing.

Frequently Asked Questions


If your question isn't addressed, or you just want to talk to a live person, give us a call at 1 (636) 916-0050.

Appointments are strongly encouraged, but are not required, for postnatal testing.

Donors should plan on being at the clinic for approximately 30 minutes.

Once all samples have been collected, results are usually available in 5 business days.

Postnatal DNA paternity testing determines paternity with over 99.9% confidence.

This is really up to you and what your situation is. If you need to know paternity for a child, they should be tested to be certain.

If the alleged fathers are not identical twins, then yes, but it is important to let us know before testing has begun that this is the case so that additional testing can be performed.

If the alleged fathers are identical twins, then no, the DNA of the twins is so similar that it would not be possible to determine which twin was the father.

No. DNA is collected by swabbing the inside of the mouth with a sterile buccal swab.

Mothers who are minors at the time of testing cannot consent to their own testing unless they have been legally emancipated and can provide the necessary documents proving emancipation. A parent or legal guardian must consent for the mother in these instances.

The minor mother, however, can consent to the testing of her child so long as she is still the legal guardian of the child.

Alleged fathers who are minors at the time of testing cannot consent to their own testing unless they have been legally emancipated and can provide the necessary documents proving emancipation. A parent or legal guardian must consent for the alleged father in these instances.

The minor father, however, can consent to the testing of the child so long as they have legal guardianship of the child, or they are named as the father on the child's birth certificate.

Yes, provided that the alleged father has legal guardianship of the child or is listed as the father on the child's birth certificate.

Only one legal guardian needs to consent to the testing of the minor child.

In most cases, yes.

If the child is a newborn, birth certificates and social security cards may not be available for the first month or two. If possible, you should wait until you receive these documents before testing, but you aren't required to do so. Testing can still occur and still be legally admissible in legal proceedings without these documents.

Appointment information is confidential; however, we can let other parties who are testing know which samples we have and have not collected, and which parties are scheduled to be collected.