Whether you need a standard paternity test or a kinship test when the father isn't available, our guided tool helps you find the most accurate and affordable testing option for your unique situation.
99.99%
Accuracy Rate
1-2 Days
Fast Results
Paternity
Father + Child
Sibship
Sibling + Sibling
Avuncular
Aunt/Uncle + Child
Grandparentage
Grandparent + Child
+ Add Mother
Enhanced Accuracy on Any Test
Answer a few quick questions about your situation, and we will recommend the best testing option.
Select the reason for testing so we can recommend the right kit and process for your situation.
Select the relationship you want to test. If you're unsure, Paternity is the most common starting point.
This is the most important question. If the father can provide a DNA sample, a direct paternity test is the most accurate option.
When the father isn't available, a close family member can serve as a surrogate. Select the closest available relative.
This determines the type of sibling test needed. Full siblings share both parents; half siblings share only one parent (in this case, the father).
Based on your answers, here is the best testing option:
Tip: Including the Mother Improves Accuracy
Adding the biological mother's DNA sample significantly strengthens results. Select the add-on below if the mother is available.
Processing time begins once samples arrive at our lab. Choose Express Shipping at checkout for fastest delivery.
Every family situation is unique. Here are the most common scenarios we help with and the recommended test for each.
Father is available
The most straightforward scenario. The alleged father provides a DNA sample along with the child.
Recommended: Paternity Test
Another known child of the father tests
When the father can't test, a confirmed biological child of the alleged father can test alongside the child in question.
Recommended: Sibship Test
Father's sibling provides a sample
The alleged father's brother or sister provides a DNA sample to determine if the child belongs to their family line.
Recommended: Avuncular Test
Father's parent(s) provide samples
One or both of the alleged father's parents test with the child. Testing both grandparents provides the strongest results.
Recommended: Grandparentage Test
From choosing your test to receiving results, our streamlined process makes DNA testing straightforward and stress-free.
Use our guided wizard or speak with a specialist to determine the right test based on who is available.
Visit our lab, a local collection site, or use an at-home kit. Painless cheek swabs take under 60 seconds.
Our lab analyzes 24+ genetic markers using state-of-the-art equipment and double-verified protocols.
Get your confidential results in 1-2 business days via secure online portal.
We understand the sensitivity of DNA testing. Our commitment to accuracy, privacy, and compassionate service sets us apart.
All results are strictly confidential. We comply with HIPAA regulations and never share data with unauthorized parties.
We analyze 20+ genetic markers using state-of-the-art PCR and STR technology, exceeding industry minimum standards.
Our team of genetic counselors and testing specialists provide free consultations to help you understand your options.
Standard results in 3-5 business days for paternity tests. Rush processing available for urgent situations.
Find answers to the most common questions about our paternity and kinship testing services.
Our paternity tests provide 99.99%+ accuracy for inclusion (confirming the father) and 100% accuracy for exclusion (ruling out the father). We test a minimum of 20 genetic markers, exceeding industry standards.
We offer several kinship tests that can establish paternity indirectly. By testing close relatives of the alleged father — such as his parents (grandparentage test), his siblings (avuncular test), or his other known children (sibship test) — we can determine the biological relationship with high confidence.
Yes, significantly. Including the mother's DNA sample allows us to identify which genetic markers the child inherited from the mother, making it much easier to isolate and analyze the paternal contribution. We always recommend including the mother when possible.
We use painless buccal (cheek) swabs for sample collection. The process takes less than 60 seconds per person and can be done at our laboratory, at a participating collection site, or via an at-home collection kit for informational purposes.
A legal test follows strict chain-of-custody procedures and is admissible in court for matters like child support, custody, immigration, or inheritance. An informational (peace of mind) test provides the same scientific accuracy but is collected at home without witnessed chain of custody.
Standard paternity tests are completed in 3-5 business days from when samples arrive at our laboratory. Kinship tests (sibship, avuncular, grandparentage) typically take 5-7 business days due to the more complex analysis required.
Absolutely. All test results are strictly confidential and shared only with the individuals who ordered the test. We comply with all applicable privacy laws and maintain rigorous data security protocols. Results are never shared with third parties without explicit written consent.
An avuncular test determines whether a child is biologically related to an alleged aunt or uncle. This is useful when the alleged father is unavailable — by testing his sibling, we can establish whether the child belongs to that family line.
Yes. A sibship test compares the DNA of two or more individuals to determine whether they are full siblings (same mother and father), half siblings (one shared parent), or unrelated. Including the known mother's sample greatly improves the ability to distinguish between these relationships.
From standard paternity tests to advanced kinship analysis, we offer comprehensive testing for every family situation.
The gold standard in paternity testing. Tests the alleged father, mother, and child together for the most conclusive results.
Determines biological paternity with maximum accuracy by testing all three parties.
Tests the alleged father and child without the mother. Still provides highly accurate results for establishing paternity.
Establishes biological paternity by comparing DNA between the alleged father and child.
Determines whether two or more individuals share one or both parents. Including the known mother significantly strengthens results.
Determines whether siblings share one or both parents, with the biological mother included for enhanced accuracy. When the alleged father is unavailable, this test provides a reliable way to statistically assess whether a biological relationship exists between the child and father.
Compares DNA between two or more potential siblings to determine if they share one or both biological parents.
Compares DNA between two individuals to determine if they share one or both biological parents. When the alleged father is unavailable, this test provides a reliable way to statistically assess whether a biological relationship exists between the child and father.
Tests the biological relationship between a child and an aunt/uncle with the mother included for maximum accuracy.
Tests the biological aunt/uncle relationship with the mother included for the best possible results. When the alleged father is unavailable, this test provides a reliable way to statistically assess whether a biological relationship exists between the child and father.
Tests the biological relationship between a child and the alleged father's sibling without the mother present.
Tests the biological relationship between a child and the alleged father's sibling. When the alleged father is unavailable, this test provides a reliable way to statistically assess whether a biological relationship exists between the child and father.
Establishes the biological relationship between a child and the alleged father's parent(s) with the mother included for best results.
Establishes the grandparent-grandchild relationship with the biological mother included for enhanced accuracy. When the alleged father is unavailable, this test provides a reliable way to statistically assess whether a biological relationship exists between the child and father.
Tests the biological relationship between a child and the alleged father's parent(s) without the mother present.
Tests the biological relationship between a child and the alleged grandparent(s). When the alleged father is unavailable, this test provides a reliable way to statistically assess whether a biological relationship exists between the child and father.
US Diagnostics Center
333 Conover Dr., STE C
Franklin, Ohio 45005
Phone: (937) 790-9991
Email: support@usdctest.com
