There are many varieties of DNA testing, some that are extensive scans of your DNA and some that provide focused or partial information. You can test for information about ethnicity, you can search for genetic relatives by matching their DNA, or you can search for information with medical significance. Some of the options you can only have through a medical provider, and others you can order for yourself directly over the Internet.
It’s hard to know who to trust, especially if you find them on the Internet and order the test for yourself. As a person who has taken many of these tests and a licensed and certified genetic counselor who works with people who test, I’ll explore the benefits and limitations of these testing options next.