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seednaで出生前診断を行いました（Instagram）
2026.04.10
What is Legal Prenatal DNA Testing?
Paternity testing during pregnancy using mother's blood
: Prenatal DNA Testing
: Prenatal DNA Testing
"Legal Prenatal Paternity DNA Testing" is a prenatal DNA test aimed at proving the biological relationship between the unborn child and the alleged father for mediation, trials, etc.
お客様がご自身で検体採取を行う私的鑑定とは異なり、被験者の検体採取を、 専門スタッフの立会いの下で行います。
検体採取時には被験者様の本人確認書類の提示、ならびに本人確認のため写真撮影を行うので、認知請求の調停や裁判などで最も強い証拠として認められます。
採血は、 全国300カ所以上の病院や産婦人科で行うため、 わざわざ遠方まで行く必要ありません。 採血の予約代行もseeDNAが行います。
採血の立合いは不要なので、気軽に検査ができます。
Comparison with Other Companies'
Legal Prenatal DNA Testing
間違った他社の情報を記載することはないのでご安心ください。
検査機関をどこにするか迷っているなら、簡単におススメの検査機関が見つかります。
| As of September 2024 | seeDNA遺伝医療研究所 | H Clinic |
|---|---|---|
| 費用 | seeDNA: 187,000円 149,800円 | Hクリニック: 149,800 yen |
| キャッシュバック | seeDNA: Up to 40,000 yen | Hクリニック: None |
| Accuracy (Probability of Paternity) | seeDNA: Over 99.99% | Hクリニック: Unknown |
| 立会い場所 | seeDNA: Over 200 nationwide | Hクリニック: 125 locations |
| 立会費用 | seeDNA: Free | Hクリニック: 22,000 yen |
| 病院数 | seeDNA: Over 300 | Hクリニック: 125カ所 |
| 採血立会い | seeDNA: Not required | Hクリニック: Required |
| 秘密保持 | seeDNA: Privacy Mark Certified | Hクリニック: No certification |
| 検査実績 | seeDNA: 2016年から 10,000件以上 | Hクリニック: Testing started from September 2024 |
| 判定ミス | seeDNA: 0 cases | Hクリニック: Not stated |
| 解析回数 | seeDNA: 2回解析 Wチェック※1 | Hクリニック: Analyzed once |
| 返金保証 | seeDNA: Full Refund | Hクリニック: 無 |
| 検査成功率 | seeDNA: 公開 （~100%）※2 | Hクリニック: Private |
| Test Regions (SNP) | seeDNA: 700 locations | Hクリニック: 52-153 locations |
*1: Double check (analyzed twice) is performed for all paternity tests at no additional cost/sample.
※2:検体の種類による精度は変わらず、検体の中にDNAさえ残っていればほぼ確実に検査ができます。検体の損傷や汚染により結果が得られなかった場合は、無料再検査/返金保証が受けられます。
Sample Collection Witnessing Fee is Free
法的胎児DNA鑑定は、 検体採取時に弁護士、行政書士など法律専門家の立ち合いが必要です。
被験者本人から正しく検体採取が行われたことを証明することで、家庭裁判所（家裁）で行われる認知請求などの調停で最も強い証拠として認められます。
We will introduce you to over 200 affiliated law firms nationwide. Additionally, the witnessing fee is included in the base fee, so there are no extra costs.
We support smooth legal DNA testing anywhere in Japan, from Hokkaido to Okinawa.
Cost and Turnaround Time
Tax included, express round-trip shipping included
- ・万が一検査結果が間違った場合は、検査費用１００％返金します。
- ・鑑定期間は土日祝日を除く平日のみをカウントした日数です。
- ・料金は全て、速達便による検体採取キットの往復送料を含む税込です。
- ・無料 性別検査の追加により結果報告期限日が延びることはありません。
- ・胎児が「双生児」の場合は、判明した時点で、速やかに弊社までお知らせください。
- ・結果報告は「肯定」もしくは「検査不能（返金保証対象外）」となります。
- ・「体外受精による妊娠」の場合、必ず鑑定開始前にご申告ください。
※結果報告は「肯定」もしくは「検査不能（返金保証対象外）」となります - ・検査精度を明記をしない業者もいますが、seeDNA遺伝医療研究所では社内のデータを明確な数値で示します。
- ・病院での採血には、立会い不要です。
- ・採血費用はお客様負担となります。
"Private Testing" vs "Legal Testing"
"Private Testing" is intended for personal confirmation, where you collect the samples yourself.
"Legal Testing" is for submission to mediation, trials, or government agencies, where samples are collected under the witness of a legal professional.
We also handle the issuance of Ministry of Foreign Affairs certificates (Apostille) required for submission to overseas government agencies, and report issuance in English/Korean. We are a testing agency with general/designated competitive bidding qualifications across all ministries.
Differences between Private and Legal Prenatal DNA Testing
| Private | Legal | |
|---|---|---|
| Cost | 99,800 yen | 149,800 yen |
| Period (Express) | 7-9 days (3-5 days) | 7-9 days (3-5 days) |
| Test Items (SNP) | 700 locations | 700 locations |
| Accuracy | 99.99% | 99.99% |
| Required Documents | None | ID Document |
| Result Report | Check on My Page | Check on My Page Written document mailed |
| Witnessing | Not required | Required (Free) |
Personally check the biological relationship of the unborn baby
Click here for Private TestingReport Sample for
Legal Prenatal DNA Paternity Testing
The test report includes test data and photos of the samples, and is accompanied by documents containing photos of all subjects taken during sample collection and their ID documents, so it can be submitted in filiation claim trials.
[Sample Collection Witness Attachment]
seeDNA's test results are only reported as "Probability of Paternity 99.99% or higher" or "0%".
"Probability of Paternity 99.99% or higher = Confirmation of relationship"
"Probability of Paternity 0% = Denial of relationship".
Flow of Legal Prenatal DNA Testing
Supporting smooth blood collection at
300 affiliated medical institutions nationwide!
1.Order
・No post-pay/installment fees
・Orders during business hours shipped same day
(Free express shipping both ways)
2.Blood collection at hospital
・We can reserve blood collection for you
・No witness required during blood collection
3.Sample collection under witness
・Free witnessing
・On-site witnessing available
4.Check Results
・We cover round-trip express shipping.
・Kits shipped same day via express for orders placed by 6 PM.
・Everything needed for testing is included in the kit. No documents or IDs need to be prepared by the customer.
・Kits shipped same day via express for orders placed by 6 PM.
・Everything needed for testing is included in the kit. No documents or IDs need to be prepared by the customer.
About Sample Collection Under a Witness
Sample collection and consent form creation are performed under the witness of professional staff.
The collected samples and consent forms will be collected by the professional staff.
For adult wards, the guardian must give consent and sign; for persons under curatorship, the curator must give consent and sign.
Also, if the test subject is a minor, a person with parental authority must give consent and sign.
In cases where child custody is being determined, the current person with parental authority or legal representative performs this.
To use the test results in court, sample collection, consent form creation, photographing, and ID verification by professional staff are essential. All test participants must cooperate with all of the following.
- Presentation of identity verification documents and submission of a copy image
- Photographing for identity verification
- Signing and fingerprinting the consent form and application form
For identity verification documents, please present one of the following: a photo ID issued by a public institution (driver's license, passport, health insurance card, basic resident register card). If the subject is a minor, please present a passport, birth certificate, maternal and child health handbook, or health insurance card.
How Prenatal Paternity Testing Works
seeDNA sincerely supports pregnant women and fathers who are anxious due to unclear biological relationships, so they can resolve their worries and enjoy a fulfilling maternity life.
Please watch the video below for specific details on how DNA testing works and the flow.
What Makes It Different!
seeDNA's
Legal Prenatal Paternity Testing
Affordable Testing
If a genetic disorder covered by our Non-Invasive Prenatal Testing (NIPT) is found in the baby, we offer a 20,000 yen cashback upon submission of a definitive diagnosis. Additionally, if you submit 20ml of blood*1, we offer a 40,000 yen cashback.
*1: Blood collection fees are borne by the customer.
Free Witnessing by Professional Staff
seeDNA's legal testing is provided by the No.1 specialized DNA testing agency with affiliated law firms offering free witnessing by professionals required during sample collection.
We are affiliated with over 200 law firms nationwide, allowing witnessing anywhere in Japan without traveling far.
We also offer on-site witnessing (optional) to collect samples at your preferred location.
No Witnessing Required for Blood Collection! Easy Collection Nearby!
The required blood collection can be done at over 300 affiliated hospitals and clinics nationwide, so there is no need to travel far. We support smooth and secure blood collection.
We can also make reservations on your behalf.
Witnessing by a professional during blood collection, which is required by other companies, is unnecessary with seeDNA thanks to our patented technology.
Reliable and Trusted DNA Testing Agency
seeDNA is a genetic testing agency that holds ISO9001 international quality standard certification and the Privacy Mark certification for privacy protection, so you can safely consult us about sensitive relationship worries.
Furthermore, we are a trusted testing agency that has received testing requests from numerous courts and police departments, holding unified qualifications across all ministries, and has been selected for various public subsidy programs such as the "Capital Investment Support Program for Dynamic Business Promotion" and "New Product/Business Development Subsidy".
Customer Voices
Satisfied Voices
2029reviews
■ Satisfied (2029 / 2069 reviews)
■ Dissatisfied (40 / 2069 reviews)
We reply to all 2069 customer reviews received directly or via SNS/Google and publish them as capture images on our homepage.
Since we started aggregating reviews in 2015, we have received 2029 'Satisfied' ratings.
We publish all surveys and opinions received from our customers, including both satisfied and dissatisfied voices.
If any of the following ① to ③ apply, it is counted as a 'Dissatisfied' opinion.
- 1 to 3 stars on Google reviews
- Selecting 'Dissatisfied' in Q1 of the survey
- More than 1/3 of the text in SNS or email is negative
Applications Accepted
Regardless of Gestational Age
Even if the male's sample is body hair or cigarette butts which take time to analyze, we can completely resolve your worries, so please feel free to consult us.
For reference, entering your "Scheduled Blood Collection Date" and "Last Menstrual Period" below will automatically calculate and display your gestational weeks.
Easy Input!
Gestational Age Calculator
*This automatic calculation result predicts gestational age and does not indicate an exact result
Contact Us
If you have any questions, please feel free to call our toll-free number.
0120-919-097＼Open Weekends Too＼
Business Hours: Mon-Sun 9:00-18:00
(Excluding Holidays)
Supervisor
Medical Doctor Kibum Fukin
Graduated from Tsukuba University, Master's/Doctorate Program in Biological Control and Molecular Information Medicine
Developed the prenatal DNA test (Patent 7331325) using Japan's first trace DNA analysis technology (Patent 7121440) in 2016
Frequently Asked Questions
Q.法的出生前DNA鑑定とは何ですか？
A.
法的出生前DNA鑑定とは、妊娠中の母体血液から胎児のDNAを抽出し、父親と思われる男性との親子関係を調停・裁判で使用できる証拠として科学的に証明する検査です。私的鑑定と異なり、法律専門家の立会いの下で検体を採取し、被験者の本人確認書類の提示と写真撮影を行うため、認知請求の調停や裁判で最も強い証拠として認められます(1)。seeDNAではSNP700カ所を解析し、父権肯定確率99.99%以上の精度で鑑定を実施します。
Q.法的出生前DNA鑑定と私的鑑定の違いは何ですか？
A.
主な違いは3点です。①検体採取方法：私的鑑定は自身で採取、法的鑑定は法律専門家の立会いの下で採取します。②必要書類：私的鑑定は不要、法的鑑定は身分証明書の提示・写真撮影・指紋捺印が必要です。③結果の用途：私的鑑定は個人確認のみ、法的鑑定は調停・裁判・政府機関への提出に使用できます。検査精度（SNP700カ所・99.99%以上）と鑑定期間（7〜9日、スピードプラン3〜5日）は同一です。費用は私的鑑定が99,800円、法的鑑定が149,800円です。
Q.法的出生前DNA鑑定の費用はいくらですか？
A.
seeDNAの法的出生前DNA鑑定の費用は149,800円（税込・往復速達送料込み）です。この費用には、全国200カ所以上の提携法律系事務所での立会い費用が含まれており追加費用は発生しません。分割払い・後払い手数料も無料です。さらに、条件を満たす場合は最大4万円のキャッシュバック制度があります。万が一検査結果に誤りがあった場合は検査費用の全額返金に対応します。
Q.妊娠何週目から法的出生前DNA鑑定を申し込めますか？
A.
申し込み自体は妊娠週数を問わず可能です。ただし、採血は妊娠7週以降が推奨されています。無料再鑑定・返金保証の適用条件は「妊娠6週以降の採血」です。妊娠6週で検査する場合は追加検査費用33,000円が発生します。男性側の検体に体毛やたばこの吸い殻など解析に時間を要する検体を使用する場合でも、早期の申し込みが可能です。
Q.seeDNAの法的出生前DNA鑑定が他社と異なる点は何ですか？
A.
主な差別化ポイントは5つです。①採血時の立会いが不要：特許技術（特許第7121440号）により、他社では必須の採血時の専門家立会いが不要です(2)。②SNP700カ所解析：他社の52〜153カ所に対し、約4.6〜13.5倍の解析領域で高精度を実現します。③全件ダブルチェック（2回解析）：追加費用なしで実施し、2016年から10,000件以上の検査で判定ミス0件を維持しています。④立会い費用無料：全国200カ所以上の提携法律系事務所を無料で紹介します。⑤プライバシーマーク認定：DNA鑑定業界唯一のPマーク認定機関です(3)。