You donated sperm, eggs, or embryos in the past and have begun to hear the news stories that home DNA tests have done away with the promise of anonymity you were once guaranteed. Here are a few tips for you that I’ve compiled, after working with families and individuals involved in surprise discoveries from DNA testing.

I've gotten some questions about how to approach an unexpected DNA match and try to open up the lines for communication. I've posted some draft language here for you to get a sense of what I've written or advised other people to write in the past.

Janna shares her experience and how she has coped with the decision made decades ago by her teenage mother after a high school party and an unplanned pregnancy.

The shock of an unexpected DNA family member can cause people to react in different ways.

The purpose of this quick guide is to answer the single most common question I hear from people who have recently received a DNA test result that does not match expectations.

I’m adopted and know the identities of my birth mother and father, but the biological siblings on my paternal side don’t know about me yet. My children are encouraging me to reach out. What should I do?

Should I help someone who wants to search for her egg donor? Is it any different from a search for a biological parent in an adoption search?

Pharmacogenomics compares differences in peoples’ DNA and the impact that certain medications might have, the dosage a doctor might prescribe, response to medications, and potential side effects.

In the New York Times this week, coverage on an unusual case. NYT reporter Heather Murphy wrote about the story of a man whom researchers are studying because he had received a stem cell transplant, and subsequent DNA testing revealed unusual results.

More people every day are discovering unexpected news about their parentage as a result of consumer DNA tests. As a licensed and certified genetic counselor specializing in ancestry testing, I have more and more people reach out to me wondering could it be true my dad’s not my dad? If so, then who IS?