" As an grownup , my father - in - law found out his mother was in reality his grandmother and his old sister was his mom . "

Recently, redditoru/OmarBessaasked,“Redditors who have gotten genetic tests, what’s the weirdest thing you learnt from your DNA?“People revealed the wildest things about themselves or their family members that they discovered from a DNA test, and some of them will leave you speechless. Here are some of the most shocking responses:

1.“My grandparents had a biological son they gave up for adoption before my mother was born and never told any of us about him. Turns out, some of the extended family knew my grandma had been pregnant before my mom but kept it a secret.”

— uranium / Academic_Smell

2.“My ancestry is exactly what I grew up being told. I have several family members who were really into genealogy, but I found out I have a first cousin we didn’t know existed. Apparently, my uncle had gotten married and had a son no one knew about when he was 19 and stationed across the country whom he bailed on.”

— uracil / nelsonalgrencametome

— u / cherrybounce

" My dad has recount me that he did n’t want to love the resultant either way , but I let it slip while picture my sisters the app once at dinner party . He did n’t react , but I stupefy an extra grown bear clinch getting on the wagon train to go out that night . Also , because I have the best dad ever — it was assumed when my mamma find out she was significant , that the pregnancy was the product of the affair . My features only solidify that laying claim . He was already raise my mom ’s first daughter as his own , whom he ’d met when she was 2 , and told my mummy he wanted to keep raise the nipper together . They got married , and he adopt her a few month after I was born . She was also treat so much as his that I did n’t even know he adopted her until I was a teen . My parent stayed together for 14 old age , and to this 24-hour interval , are still serious acquaintance . "

— u / LamePennies

5.“I found out that I’m missing part of a chromosome.”

— u / SLPinOMA

6.“I’m a carrier for a blood disease calledhemochromatosis.”

— uranium / throw123454321purple

7.“My mom always thought she was French. Like, all four grandparents only spoke French, French. She got the test, and it came back, like, only 10% French and a bunch of other European and some Middle Eastern. It caused a bit of a family identity crisis. Three weeks later, she got an update that said, ‘Sorry about that — you’re 99.5% French!’ Phew!”

— u / Pinkmongoose

8.“Eight of my third cousin matches are from my cousin being a sperm donor. A couple of them reached out to me for information about their ancestors. So, anytime I get a third cousin match, I check and see if they are half-brother or half-sister to the ones that I know.”

" He obviously had some good swimmers . "

— u / Witchgiggle

— u / Somethingood27

10.“When my sister took one of those at-home tests as a gift from her husband, we learned that our dad wasn’t our biological father. Wish they had told us that before I was 26. Would have saved a lot of fights and reconciliation.”

" Also , I learned I ’ll never know my bio father because he was remove when I was in grade school . "

— atomic number 92 / glittercoyote

11.“That either my grandfather or one of his brothers slept around while married, got a legit US spy pregnant just after World War II, and bailed out. She gave the baby to her sister to raise so she could keep her job. The ‘baby’ didn’t find this out until in his mid-40s. I found out thanks to Ancestry.com and was able to at least connect the paternity dots partially for him.”

— u / HikeRobCT

12.“My grandma got a DNA test done because she was sold as a baby and never knew her biological parents, so a family member urged her to do it so we could maybe find them. We found both sides — a half-sister from her bio mom and a half-brother from her bio dad. Although it was kinda weird to realize we have family close by (only 20 miles away in one case), it was much weirder for the bio families to discover my grandma’s existence, since neither side had anything to do with the other.”

" Some more context , this happened back in the ' 30s ( Depression Era in the US ) . Her bio mom and bio dad seem to have scotch paths at some point in the same metropolis . He was a married humans , and she was an older teen . Not certain if it was a one - night base or something more nefarious , but her bio mom was pregnant as a result of that night . At some full stop in her gestation , she checked into a dwelling house / infirmary for significant , unwed teenage mothers . The bio mom was secern the home would line up homes for the babies , so she delivered and give . Bio mamma went on to marry and have her own family , while bio daddy probably never knew of the post .

As it would turn out , the home was not dramatize babies , but rather trade them . Since my grandma was blonde and blue - eyed , she was bought quickly for a high-pitched price by a woman wait to baby - sand trap a guy ( astonishingly , it play ) . My grandma did n’t know until her teen that she was sell . "

— atomic number 92 / very_bored_panda

An old Polaroid of a mom holding her baby

13.“I’ve got moreNeanderthal DNAthan, like, 80% of users.”

— u / show_pleasure

" I catch my final result before my married man , and was 80 % . My husband thought it was so rum and kept bringing it up . His came in , and he was 93 % . "

— uracil / cherryberry0611

A soldier's boots

14.“I found out I have the gene that causes lactose intolerance or something like that. Never had a problem with it my entire life. Thirty-seven years raised Italian, lived in the Netherlands and Germany, so I had plenty of cheeses and milk growing up and in my adult life with zero issues. No joke, three days after getting these results from 23andMe, I ate a bowl of cereal and five minutes later fell over from the horrible cramping and nonstop runs to the bathroom. I was diagnosed with full-on lactose intolerance a few days later.”

" The main grounds I took the trial was that I ’m adopted and launch out I have a farsighted , recede biological sister out there somewhere , but the biggest match on 23andMe and Ancestry was 4 % match so far , three years later . "

— u/5011617609122

15.“My husband and I took those tests, and his results came back with something like, ‘90% British’ with a side note that most British people are 75% British.”

" I expend a good twain of year pester him about being ' more British than the Brits ' and asking when he would take me to have tea leaf with the Queen . It was large , LOL . "

— u / ISwearIUsedToBeSmart

" My maternal grandfather insisted that he was just British before taking the test . I reminded him that most masses are n’t 100 % anything . So , he ’s likely to get at least some other parentage in there . Well , as it turn out , there was n’t much of anything else . He was 99.8 % Britishwith just 0.2 % vestige line of descent . "

A mom kissing her daughter on the cheek as she smiles

— u / JoeyCalamaro

16.“I used my DNA to find my birth mother. I triangulated matches, collected all the common surnames and matches, and created dozens of family trees. Then, I went down line after line until one line added up with tons of common matches all around. We ended up speaking later, and I matched with her daughter (my half-sister, as expected). It turned out, my bio mom didn’t want to give me up but was forced by her parents as she was a teenager at the time.”

" Doing this , I had problem with my Padre ’s side ( bio mom afterward told me my father ’s name ) . The reason was , I found out afterward , that there was unfaithfulness on his side of the family . So , what was write on newspaper was n’t the lawful narrative . I retrieve my mother the same way the police find serial killer lately , and then , I found out my father ’s side of the family had some hinky stuff going on . I have two sept trees now on ancestry , the ' deoxyribonucleic acid tree ' where I figured out that one of four possible brothers cheated to create a grandparent . And I have the ' on paper ' tree partake in in public .

( To add : I only address to her after my half - sister play off with me . She joined the site specifically to find me , so I knew then the home want inter-group communication . ) "

— u / Yarn_Mouse

A father holding their baby

17.“I did an Ancestry DNA test and found my dad’s half-sister — he didn’t know he had a half-sister. My dad has three brothers (four of them total), and the half-sister is in the same age range as all of them. Apparently, my grandfather had an affair in a town about three hours away from ours, fathered a child, and never came back for her. He abandoned the woman he got pregnant and his child. My grandfather died when my dad was a young teen.”

— u / pnwlex12

18.“I found out my cousin is actually my half-sister. Growing up, everyone would comment on how similar we looked; we’re also within a few months of each other age-wise. Looks like my dad got with my mom and her mom around the same time. Yeesh.”

— uracil / Chrischinray

19.“My grandmother had secret babies she put up for adoption. I didn’t find out until six years after she passed away, so we’re never getting answers as to what happened. Also, I got a surprise contact by the police, as I was a high match to a John Doe who was found drowned on the shores of Lake Superior in 1991. That was a fun family tree rabbit hole to dive down.”

" Turned out to be a half first cousin from my granny ’s firstborn . "

— u / Jrewy

20.“As an adult, my father-in-law found out his mother was actually his grandmother and his older sister was his mom. Things were different in the late ’30s.”

— atomic number 92 / CBus660R

And finally…

21.“I’m 2% Jewish, even though my family has a really large Hispanic heritage as well. Also, my mom never knew her dad, but she has a large family in Louisiana who was aware of her and her kids, never reached out, lied on record when her dad passed away to gain access to his estate, and is now being sued for it.”

— u / Smashthecrown

Note : Some responses have been delete for length and/or clarity .

A doctor looking at DNA on a screen

A doctor speaking with a patient

View of Paris

Someone looking at old family photos and documents

A couple on their wedding day

A woman looking shocked at something she's seeing on her laptop

A woman touching her pregnant belly

closeup of a baby in the hospital

Cave paintings

a bowl of cereal and a glass of milk

A man on a street with British flags everywhere

A family tree on a paper

A positive pregnancy test

Twin sisters hugging

A woman on a boat holding her baby boy

A baby smiling

A judge banging a gavel