Is it Possible to do prenatal paternity testing using the mother`s blood?

Yes, it is possible.

Non-Invasive Prenatal Paternity Testing is a Reliable Testing Method

お母様の血液を用いた出生前DNA鑑定で父親が確認できる?

 Accuracy of a Non-invasive Prenatal Paternity Test

We often receive inquiries about how accurate a prenatal paternity test is.

A mother and her unborn baby share blood through the placenta, how the baby receives oxygen and nutrients from the mother.

In 2000 it was confirmed that fetal cells can be detected in a mother`s blood, and this discovery has made it possible to confirm genetic or congenital disorders. 

In 2012, a method for comparing the DNA types of the father and the fetus was first developed in the US.

In the early development of the process, there were accuracy issues and concerns about sample storage. However, the testing method has since made huge advancements, and is now considered a highly accurate testing method in countries all over the world.

Click here for more information about Non-invasive prenatal paternity testing

Test Pricing・Processing Time

Test Prices (tax not included)

Personal DNA test: 159,000 yen

Test Processing Time (in business days)

Express Test Results: 5~10 business days (+20,000 yen)
Standard Test Processing Time: 10~16 business days

* Processing Time is counted in business days. Saturday, Sunday and National holidays are not counted as business days. (Our laboratory follows the Japanese calendar)

* Please note that refunds for express test results cannot be issued in the event that processing is delayed due to delivery mishaps or poor sample conditions.

What is a Non-Invasive Prenatal Paternity test?

In general, it is possible to do prenatal paternity testing from the 7th or 8th week of pregnancy as the amount of fetal cells present in the mother`s blood increases. The amount of fetal cells detectable in the mother`s blood can differ from person to person, with cases of successful DNA tests as early as 6 weeks being reported, as well as unsuccessful DNA tests at 24 weeks. While there can be a wide range, it is generally possible to test from the 8th week of pregnancy and on.

Clients that have had blood samples collected in the 8th week of pregnancy or later are eligible for a free re-test or refund in the event that the first DNA test was unsuccessful.

See the <Calculating Pregnancy Gestation Period>

Amniocentesis/CVS Test

There are 2 types of Invasive Prenatal Paternity testing. One is to test the fetus that has been excised during an abortion surgery, and the second is to test the amniotic fluid from the amniotic sac or chorionic villi from a small sample of the placenta.

For an amniocentesis test or CVS (Chorionic Villus Sampling), there is risk of damage to the fetus and there are not many obstetrics and gynecologists that will perform the procedure for the purpose of paternity testing. Although invasive prenatal paternity tests are nearly half the price of non-invasive prenatal paternity tests, there are cases where invasive testing ends up more expensive overall, as the surgery involved with sample collection for amniocentesis/CVS tests can be expensive.

Blood Sample Collection at a Hospital

DNA鑑定と病院

A mother`s blood sample is needed for non-invasive prenatal paternity testing (and optional prenatal gender test), and an amniotic fluid sample (or chorionic villi) is needed for an amniocentesis or CVS test.

We can introduce a hospital in your area that can collect blood samples for DNA testing. Blood samples must be sent to our office the same day that collection is taken. Please note that only blood samples taken from the 8th week of pregnancy and later can be used.

From the 6th week of pregnancy, a fetus`s DNA can be detected in the mother`s blood. It is possible to determine biological relationships by analyzing DNA from the mother, the fetus and the alleged father(s).

In general, the later in the pregnancy the more fetal cells can be detected in a mother`s blood, and from the 8th week on they reach a level at which DNA testing can be done.

See the <Calculating Pregnancy Gestation Period>

For an amniocentesis or CVS test, there is an additional fee for the surgical procedure for sample collection. The price varies by clinic, however in general ranges from 50,000 to 100,000 yen.

Also, as there is a risk of harm to the fetus for amniocentesis and CVS tests, there are not many hospitals that will perform the procedure for the purpose of a DNA test.

How to Collect DNA Samples

母親の血液による出生前DNA鑑定の方法

 Cheek Swab Samples from the Alleged Father Can be Used

For non-invasive prenatal paternity testing the mother provides a blood sample, and the alleged father provides a buccal (inner cheek) swab sample. If a cheek swab sample cannot easily be obtained, it is possible to test non-standard samples such as a toothbrush or semen. While accuracy of the test is not affected by the type of sample used, a test can be unsuccessful if the condition of the sample is poor.

Unlike with an amniocentesis or CVS test, for non-invasive prenatal paternity testing a variety of non-standard sample types (asides from a toothbrush or semen, cigarette butts, hair strands, nail clippings, etc.) can be tested for the alleged father.

The cost of prenatal paternity tests is much higher than other relationship DNA tests.

Sample Collection for a legal DNA test

In cases of child custody or inheritance suits where legal DNA tests are required, consent is needed from all test participants, and a meeting with an unbiased third-party specialist is required for sample collection and paperwork submission.

We can arrange for third-party specialists to meet with our clients nationwide, not just near out Tokyo and Osaka office locations.

If you cannot have a blood sample collected at your usual hospital, we can introduce a hospital in your area that can collect samples for DNA testing.

We will cover the shipping costs for sending the sample to us, as well as the fee for the third-party meeting (in cases of using one of our branch offices or affiliated law office locations). Blood sample collection fee to the hospital however is the responsibility of the client.

 

From when is it Possible to do a Non-invasive Prenatal Paternity test?

In general, it is possible to do prenatal paternity testing from the 7th or 8th week of pregnancy as the amount of fetal cells present in the mother`s blood increases. The amount of fetal cells detectable in the mother`s blood can differ from person to person, with cases of successful DNA tests as early as 6 weeks being reported, as well as unsuccessful DNA tests at 14 weeks. While there can be a wide range, it is generally possible to test from the 8th week of pregnancy and on.

As testing is done with just 10ml of blood for the mother`s sample, it is recommended that sample collection be done from at least the 8th week of pregnancy.

See the <Calculating Pregnancy Gestation Period>

Customer Testimonials

Every person`s situation is different, and many of our clients find it difficult to consult with people close to them about such a private matter as a DNA test.

We at seeDNA want to support you, and provide a free no-obligation consultation service. We are happy when we hear that we have been able to help.

October 13th


Thank you for all you have done.

The test processing time was very prompt, and the results were delivered quickly.


Whenever I called the office with questions your staff always provided clear explanations. Just consulting over the phone helped relieve my worries.

Thank you so much.

September 26th

Thank you for getting back to me.

No matter how many questions I sent, you always gave clear and easy to understand explanations. I was able to order a DNA test with no worries. Please give my thanks to the doctor. Thank you again.

 

September 1st

Thank you for all of your help! I have been so worried, and when I saw the test results I was so relieved to confirm what I had hoped to be true. Now I can move forward in my life together with my child with no worries. Thank you so much.

July 27th

Thank you for sending me the test results.

The expected test results date was originally August 9th, and I thought perhaps at the earliest results could be sent 1 or 2 days earlier. So I was happily surprised they arrived even earlier!

I was very satisfied with your service. Thank you again.

May 29th

To seeDNA Customer Support

I ordered a non-invasive prenatal paternity test.

Thank you for introducing a hospital near me where I could have my blood sample collected. The staff that I spoke with was very professional and helpful. I didn`t think I would be able to find a hospital in my area that would allow blood samples for DNA testing, so I was very grateful.

Words from Our Clients

Customer Support

Our knowledgeable, professional staff is ready to guide our clients through the test procedure step by step to make the process as easy as possible. Our DNA specialists will answer any questions or worries you may have. We can provide support in Japanese, English and Korean.

DNA鑑定の判定ミス「0%」の安心感

In 2016 we processed over 1,000 DNA test cases.

You can trust seeDNA with your DNA testing needs. We have a proven track record with 0 false reports.

We at seeDNA will continue to comply with international regulations and fulfill our social responsibilities.


Please feel free to contact us.
Questions consultation is completely free >>

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It is important to choose a laboratory you can trust with your DNA Testing. You may see many companies online advertising cheap and fast DNA testing, but it can be difficult to know which companies can be trusted to provide accurate results. seeDNA is a specialized laboratory with a proven track record, trusted with thousands of DNA tests a year. We guarantee you high quality, accurate results.

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