Nowadays, paternity testing has become an important and accessible process for families seeking assurance of biological relationships. This test not only provides genetic clarity, but also reduces anxiety and social stigma. At Health Smile, we provide convenient paternity testing services nationwide. The process is quick and easy, yet cost-effective, giving families peace of mind without any hassle. Health Smile’s paternity testing process, which does not require legal documentation, is divided into two types: 1. Self-test and 2. Our staff will provide the service. Details of each method are as follows:

1. DNA testing to prove paternity by yourself

Those who wish to get tested can get a DNA test kit to prove paternity by themselves at LINE ID: @HealthSmile

  • Please provide your full name (anonymous name is acceptable), address, and telephone number for delivery of the test kit (there is a 500 baht deposit for the test kit).
  • The company delivers the test kit via private transport to the address mentioned.
  • Those who wish to be tested can collect the specimen themselves using the DNA collection stick in the test kit, following the instructions provided.
  • After storing properly, the person who wishes to inspect must return all the equipment to the company according to the procedures provided.
  • The company will inspect the quality of the test kits.
    • If the quality of the items sent for examination is good, the officer will contact you to pay the remaining examination fee.
      • It is recommended to pay within 24 hours as prolonged storage can cause the DNA to deteriorate.
    • In the event that the quality of the sample sent for examination does not pass, the staff will contact you to inform you and send you a new test kit free of charge. If the quality of the sample sent for examination in the second round does not pass the quality criteria, the company will refund half of the deposit (250 baht).
  • After paying the remaining test fee, the company will conduct a standard DNA test.

Limitations on reporting DNA test results to prove paternity by yourself

Because self-examination is a convenient, private, and cost-effective method, the results of a paternity test using the self-collection method cannot include the name of the person being examined, as we cannot verify who is being examined. Therefore, this method cannot be used as a legal document.

DNA test to prove paternity yourself, click here.

2. Appointment for DNA testing to prove father-child relationship without using legal documents.

Those who wish to undergo a DNA test to prove paternity can make an appointment via Line ID: @HealthSmile to schedule an appointment and provide additional personal information.

  • Please provide personal information. You can use an anonymous name or a fake name. However, if you use a name that does not match your ID card, you will not be able to enter your first and last name on the test results.
  • Make an appointment for a date and time for the officer to collect the items for examination and pay a deposit of 500 baht when the appointment date is set.
    • When making an appointment for a DNA test to prove paternity, if the child being tested is not yet of legal age, consent from the child’s mother or legal guardian must always be obtained.
    • If one or all of the mothers or legal guardians do not consent, the officer will not be able to enter to give the examination.
      • It is recommended to have a DNA test to prove paternity by yourself instead.
  • The officer will collect the items for examination and confirm your identity if you wish to include your name on the test results.
  • Pay the remaining amount to the Admin after collecting the items for examination (the company does not accept cash payments).
  • After paying the remaining test fee, the company will conduct a standard DNA test.

To make an appointment with an official to perform a DNA test to prove paternity, click here.

Supporting documents for DNA testing to prove paternity

  1. Documents from the man who wishes to verify paternity
    • Original national ID card in the case of Thai nationals or original passport in the case of foreigners.
  2. Child’s documents
    • Birth certificate of the child with the mother’s name on the birth certificate
  3. Mother’s documents
    • A mother or legal guardian must be present if the service recipient is under 20 years of age.
      • Mother’s original national identity card
      • The mother must sign a consent form for the examination.
      • If the mother dies, bring the death certificate to show to the officials as evidence and must have a legal guardian along with the original documents of the legal guardian.
    • In the case where the examinee has reached the age of majority, the mother is not required to be present.

** If the service recipient has changed their name or surname, they must bring the original name or surname change document to present to the officer as evidence.

Service criteria

  1. Can be examined from newborns
  2. In the case where the service recipient is under 20 years of age, the mother must sign a consent form for the examination. If the mother is deceased, the death certificate must be presented to the officer as evidence.
  3. Make an appointment with the staff via LINE Official Account: @HealthSmile before every time to schedule an appointment for DNA testing services.

Paternity testing process

Confirm the date and time you wish to receive the examination at LINE ID: @HealthSmile.

  • In the case of self-examination (legal documents cannot be issued), the company will deliver the test kit to your home. You can easily collect the items yourself according to the procedure and send them back via EMS.
    • The examination fee is 11,500 baht (this price includes examination of one suspected father and one child).
    • A deposit of 500 baht is required before the test kit is sent to your home, and an additional payment of 11,000 baht is required when the test kit arrives at the center and meets the specified standards.
  • In the case of requesting an official to inspect your home (legal documents cannot be issued)
    • The examination fee is 12,000 baht (this price includes examination of one suspected father and one child).
    • In Bangkok and surrounding areas, please make an appointment 2-3 days in advance.
    • For provinces, please make an appointment 4-5 days in advance.
    • A deposit of 500 baht is due before the scheduled home inspection date and an additional payment of 11,500 baht is due when the staff has collected the items for inspection.
  • In the case of coming to the center for examination, there are many centers where you can come for examination. Please contact to make an appointment and inquire about the service center nearest to you at LINE ID: @HealthSmile.
    • Can issue legal documents
    • The examination fee is 12,000 baht (this price includes examination of one suspected father and one child).
    • If legal documents are required, there is an additional legal document issuance fee of 10,000 baht (total cost 22,000 baht).
    • Opening hours depend on each center.
      • Bangkok Center provides services 3 days a week: Tuesday 4:00 PM – 8:00 PM, Saturday – Sunday 9:00 AM – 5:00 PM.
      • Make an appointment 1-5 days in advance, depending on the province.

Verify personal information: ID card, birth certificate, or passport.

In the case of an appointment for service and there is no identification document or the name does not match, the name of the person being examined will not be included on the examination results sheet.

Undergo DNA sampling by buccal swab and photograph.

  • No need to abstain from food and water. In the case of chewing betel, abstain 1 day before receiving the service.
  • The processing time per case (family) takes approximately 15 minutes – 1 hour.
  • Please inform us of your payment request at LINE ID: @HealthSmile . We accept online payments via bank transfer or credit card only, so that we can provide clear proof of payment.

Cost of DNA testing to confirm paternity

In cases where legal documents are not required: Father-child pair, 12,000 baht, receive test results within 7-14 days (service available at home)

In case of needing legal documents: Father-child 1 pair 22,000 baht, receive test results within 30 days (must receive service at the center only)

Paternity testing is not accepted in the following cases:

  1. Amniotic fluid, umbilical cord blood, or any part of the fetus in the womb.
  2. Various types of evidence such as hair, nails, blood, or personal items that may contain genetic material samples.

The father-child DNA test result cannot be included in the following cases:

  1. Collect the specimens yourself
  2. One of them does not have an ID card, birth certificate, or passport.
    • If an appointment has been made and the officer arrives at the inspection location but is unable to present the documents, but a new appointment is required to present the documents, an additional travel fee of 1,000 baht will be charged per appointment.
  3. First and last name do not match the name on the ID card, birth certificate, or passport.

Receiving the DNA paternity test results report

Persons entitled to receive the relationship verification report

Must be the person whose name is specified in the notification of intent to receive results.

For further inquiries, please contact LINE ID: @HealthSmile