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Why are breasts different sizes?

1181 ratings | 69691 views
Or: "What do boobs and testicles have in common?" Share this on Facebook: http://on.fb.me/1qLpShU Share this on Twitter: http://ctt.ec/N11J5 Subscribe: http://bit.ly/1l8JXv3 On the web: http://www.stuffmomnevertoldyou.com/ Twitter: https://twitter.com/momstuffpodcast Facebook: https://www.facebook.com/StuffMomNeverToldYou Google+: http://bit.ly/1kNchOQ Tumblr: http://stuffmomnevertoldyou.tumblr.com/ Instagram: http://instagram.com/stuffmomnevertoldyou# Extra Credit Listening: http://www.stuffmomnevertoldyou.com/podcasts/how-estrogen-works/ http://www.stuffmomnevertoldyou.com/podcasts/why-are-breasts-different-sizes/ Join Cristen to get down to the business of being a woman and all the Stuff Mom Never Told You about bodies, boys and the female brain.
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Text Comments (145)
라인 (6 months ago)
It's great I watched this video. I thought I have breast cancer and it's been worrying me for the past few days phew
The True Republican. (6 months ago)
Her comment about Testicles is one of the many reasons I hate being male.
Khizra Asad (8 months ago)
# breat augmentation
Sugoi Steel Claymore (9 months ago)
our dicks also get larger and smaller under certain circumstances.
Vankdoth Priyanka (1 year ago)
pls suggest how to solve problem of making two breasts same size
Mya’s Creation (1 year ago)
Right here
TheBlueBrain (1 year ago)
am I allowed to watch this if im 13
Nah, we're teens so it's fine for us.
Tor Diryc'Goyust (1 year ago)
It's also worth mentioning that female breasts are on average one of the more symmetrical parts of the body relative to the size of the body parts in question. Only the face is more symmetrical on average, and larger breasts are actually more symmetrical for their size than smaller breasts, on average. This level of symmetry costs a LOT of nutrients to make happen, and is a major clue for figuring out how human sexual dimorphism and the neurology of sexual attraction in humans evolved. Oh, and another obvious factor to consider when examining why one breast is bigger than the other is that the pectoral muscle controlling your dominant hand is likely to be bigger (insert 'abstinence makes the arm grow stronger' joke here). This mostly doesn't effect cup size, but it does greatly effect bust size, and that has a huge impact on how your body is perceived. This also means that you have some measure of control over your bust size by controlling your exercise regimen, just as you have some measure of control over your abs and thighs, as much as you, like most people, probably don't, er, exercise that control.
Yelsha Stylinson (2 years ago)
my left is bigger than the right. for me its crazy!
AnimeFreak792 (2 years ago)
My right boob is smaller than my left. However, I don't know what it was before I had surgery on it... I can't remember. I had surgery on my right breast (thankfully no cancer. Only benign mass) but since then, it's been smaller. Might have grown a tad but not by much. I'm always conscious about it and I hate it but oh well. It doesn't seem to be very noticeable.
Clark Kent (3 years ago)
Yes my left peck is slightly larger than me right one
Amari Bethea-Street (3 years ago)
Hey my left boobs us bigger than my right I think think it's weird it will be the same size soon right?
Oats Carter (3 years ago)
I think when women gain weight, it should go to their breasts first and when they lose weight, they lose it from their breasts last...
Oats Carter How are you reading my mind!?
Jas Hobbs (2 years ago)
ShayPlayz (3 years ago)
jesse lawrence (3 years ago)
Two cup sizes difference and getting bigger since having my daughter. I know I need to get this checked out. Thanks for putting a fire under my butt!
Silver _f0x (3 years ago)
so as you get older it'll even out?
My left and left boob are smaller....
BlueHypothermicReality (3 years ago)
i used to know a girl that had one boob the side of a large mellon and the other one a large orange. she had a good sence of humor about it though thank fully :) personally my right boob is always lightly bigger then the left one, the difference isnt noticeable to anyone else though..
I Am Aurora (4 years ago)
I know! My right boob is smaller then my left ugh!
Jenni Seven (4 years ago)
My boobs are asymmetrical, but not for the reason you described. I have two daughters, and, while breastfeeding, I favored nursing them on the right side, because I am left-handed, and nursing them on the right side gave my left hand more mobility. As a result, my right breast is permanently larger than my left. Let this serve as a cautionary tale.
Bassline Babe (4 years ago)
Most women have different sized breasts. The dominant arm burns more fat, so the boob on that side tends to be smaller in size because boobs are made up of fatty tissue . Following the logic most men probably have a larger pectoral muscle on the side of their dominant arm, in the same way that most people have larger biceps on their dominant arm. 
Max Thomas (4 years ago)
Yes show me, FOR SCIENCE!!! (Yes, science)
Micheal Badtke (4 years ago)
did you really make a HTTYD reference?
Randy Wright (4 years ago)
Lol do a show on how much guys testicles shrink after swimming in cold water
Randy Wright (4 years ago)
Damn your to funny more girls should be like you the world would be a much better place
tweetthang96 (4 years ago)
My best friend has asymmetrical breasts due to weight flux. She gained weight after going off of some medication she didn't need and her breasts filled out. Then she got super sick and lost all of the weight she'd gained (not much but enough to fill out her frame and make her look healthy as she's always been sickly thin) and then some. She's quite frustrated because now her swimsuits and bras don't fit right. :/ My own breasts are slightly uneven but not enough to be really noticeable.
ExtraordinaryDork (4 years ago)
I didn't know that anything on your body could be symmetrical without having it surgically done.
tweetthang96 (4 years ago)
The human body is actually supposed to be symmetrical. Asymmetrical features can be due to stress in utero, hormone "hiccups", physical elements such as radiation exposure, any number of things that affect the body as it grows. Naturally "pretty" people tend to have naturally symmetrical faces or faces that are almost perfectly symmetrical and can be made to look perfectly symmetrical with makeup.
Katherine Rybski (4 years ago)
I knew a girl who had one A cup and one C cup. She said finding a bra was awful and she ended up getting a C bra and wearing one of those "chicken cutlet" gel things on one boob for years. 
catherine wojtan (4 years ago)
hollla im a lopsided lady
Skada (4 years ago)
I'm 22, and my left breast is (almost) completely flat, where as my right is a B. It is completely noticeable in clothing; I'm not sure if it is something to be worried about, but it's embarrassing and makes wearing bras really uncomfortable.
Danielle Hull (4 years ago)
I love nectarines as well!!! They are soooo juicy...
Devin Kates (4 years ago)
Oh my god my right boob is sooooo much bigger than my left boob. Like whhhhhy
Ravenclaw Seer (4 years ago)
I never noticed a difference in my testicles.  Although I notice that even when you see 50 muscled men they are all built differently even if in the same body type i.e. medium.
Amelia R (4 years ago)
The doctor giving me my first breast exam in college asked if i had implants because they were "abnormally round and symmetrical"....apparently, according to her experience, my boobs are weird for NOT being different.
5micky2 (4 years ago)
DNA analysis shows that 100,000 years ago men had 2 penises which were always fighting over who was going to go in first. (This was the origin of cock fighting). Eventually a long-forgotten feminist of the species settled it by cutting one off. The 2 testicles also fought for superiority until finally the bigger of them said ok you can hang around as long as you stay on your side.
Jas Hobbs (2 years ago)
CallahanSF2211 (4 years ago)
Ya, I read this too in a science book.
Anti Moose (4 years ago)
Hey! Your lopsided boob brethren are right here my dear lady!
Ebony Miyota (4 years ago)
Well...this made me feel a little less self conscious.
How did you get soo good at talking to the camera? or are you just a natural? 
MouseCop (4 years ago)
My right penis is a bit larger than my left. Oh well...
Roopa Parthiban (6 months ago)
MouseCop Same here
NiteOwl (2 years ago)
yeah while its left for me, doesn't matter which size is bigger but it is better to have one bigger ball so thry sit better in the small space
Ruby Doomsday (4 years ago)
Nope, I'm symmetrically flat all the way across.
Sarah R. (4 years ago)
Heeey me too! Let's hear it for the kumquats! 
Samy Ismael (4 years ago)
I thought this video was about why women have different cup sizes amongst one another.  Idea for another video perhaps?
Matthew Marn (4 years ago)
The testical hanging lower thing is also so they don't slam together while we walk around :p
Katariniana Casiaca (4 years ago)
my left boob is a D while my right is a C... i notice it whenever i look down and it makes me feel like a freak :P nice to know im not alone!!
Oliver Vocaloid (2 years ago)
+Terin Kasica Omg xD Thats exactly how mine are! I don't really notice it all that much but that's because I wear baggy clothes xD
Jonathan Rail (4 years ago)
Anyone else think of Anna Chlumsky in "My Girl"? "One of my breasts is coming in larger than the other, which can only mean one thing: Cancer, and death."
Kass Hodorowski (4 years ago)
My ex had Atypical Hyperplasia. One breast fit well in a C cup and the other was relatively non existent. The first time being nude around me was really tough though it never bothered me. However later on she was able to get her insurance to cover a augmentation as a reconstruction citing mental anguish it caused her. And it did cause problems. Not being able to wear clothing she wanted to wear. She would never go swimming.
Lana B (4 years ago)
Hey could you do a video about larger than normal inner labias or clitorises since I have a friend have crippling anxiety over our own. I find it holds me back not only in intimate situations but even something as simple as wearing a bathing suit in public
Bloodmoon209 (4 years ago)
I am. I didn't even notice until I dated my husband and he told me. He loves them just the way they are and good thing too. The only thing I got going is my junk in my trunk and that has always been his thing. Other than that I am surprised that I am pretty even on everything else... but one of my eyes are higher than the other but I subconsciously keep my head tilted and have glasses so no one notices.
Gunmetal Glitter (4 years ago)
tuniki (4 years ago)
my right testicle hangs lower than my left. I also never thought to notice something like that until today, thanks!
carla perdomo (4 years ago)
For the ask cristen segment, are we to just comment our inquiries below or email her?
IQzminus2 (4 years ago)
Why are men shirts and women's shirts buttoned differently? One is right side over left, and the other left over right. A friend of mine mentioned this recently, and I went around the house and compared my dad and my own shirts. It's true, the buttons were on opposite sides. She said it was because women and men used to sit separated on different sides in churches, and so all clothes were designed to not allow people to peep through between the buttons. I'm just a bit sceptical but it seems possible. I can't stop thinking about it, could you make a video on the topic?
M Greenwood (4 years ago)
IAs Jonathan Rail said, it was because well-to-do women were dressed by servants (look at those huge Victorian dresses...those had to be hard to get on by yourself). The placement of buttons on the left was more convenient for a maid who stood facing her mistress. Then it just kind of stuck. 
Jonathan Rail (4 years ago)
The explanation I heard was that as off-the-rack clothing became more prevalent, men would be more likely to dress themselves, while women were more likely to retain the assistance of a servant. Either way, it was assumed that the person doing the actual buttoning would be right-handed, so clothing was mass-produced accordingly.
Loreki (4 years ago)
Actually you're wrong about the testicles thing. There's an article called Scrotal Asymmetry in Man and in Ancient Sculpture which discusses the finding that the larger and heavier testicle is paradoxically the higher one, a fact the ancients were unaware of and therefore got wrong in most sculptures. The chap who wrote the short piece won an Ig Noble prize for it, the world's premier prize for bizarre (and seemingly useless) but nonetheless rigorous research. Also ladies, if you're nervous of your asymmetrical breasts, just find an asymmetrical partner to match!
tomaten salat (4 years ago)
Dam, that's right. My left testicle hangs a bit lower and is a bit larger. Never noticed that :D
Amanda DeMarco (4 years ago)
Thank you for this video! I thought I was weird!
Nick (4 years ago)
Now I gotta go check out my testicles.  Although, I am left handed.
Stuart Herrington (4 years ago)
A typical hyper pleasure of the breast?
Rachael Kwok (4 years ago)
I love you Cristen :) your videos always brighten up my day.
Hey, Folks! (4 years ago)
"Nectarines are delicious...AND MESSY!" Just like boobs! \0/ [Possibly replace boobs with testicles to be far more accurate...*sobs*]
Hey, Folks! (4 years ago)
When I asked about that bust I literally meant the bust. But the boob info is neat regardless. (Anyone figured out who that is yet?)
Everyday Imstumblin (4 years ago)
My right boob is bigger than my left boob. Together, they are big boobs.
ughhseriouslywow (4 years ago)
My breasts are pretty much the same size but my nipples and areolas are placed pretty differently on each breast. What's the cause of that? I'm pretty sure my nipples were symmetrical before I had the boobage.
Kieran Mcgarry (4 years ago)
I didn't know my boobs were different sizes until I got measured this year. Except I don't speak french, so the ladies kept giving me different bras and checking in and they gave me a piece of padding for one cup and not the other. Ended up not going with that style bc the padding just felt weird. Just like my feet, my right one is slightly bigger.
Joshua Taylor Madison (4 years ago)
Testicle size and texture changes daily too.
Random fact: My larger breast created more milk when I breastfed. Old lefty is a dud when it comes to milk.
Alli Mae (4 years ago)
How do you tell your parents that it is just not a "phase in life" and make them believe you? Whether it be about sexuality, gender identity, clothing choices, music, aspirations, ect.
PlainsDemon (4 years ago)
For me my right testicle is bigger and lower.... but I already figured that isn't any worry...
pegasister42 (4 years ago)
The breast and areola on the left side are a little bigger, but since my boobs are big, no one really notices.
Nicole Sharp (4 years ago)
Cristen, sorry if this is random or unrelated, but I have an issue I was wondering if you would touch on. I'm in my early 20s and have been moderately disabled for the past year or two. This has pretty much demolished my self esteem and motivation for dating or being in a relationship, I fear it would not be fair to the other person because I may not be able to do things like go out very often or *ahem* do much 'strenuous' exercise, I also feel like I would be emotionally high maintenance due to frequent illnesses, hospitalizations and operations/procedures. This all would maybe be okay if I was already in a committed relationship, but I am not and feel like because of my chronic illnesses I feel like I am "un-datable". Do you have any advice for me?
Micah (4 years ago)
My left body parts are slightly larger/more muscular than their right counterparts. Also my hair grows at varying rates on either side of my face, so maintaining my facial hair is a pain.
Desirée Barrios (4 years ago)
That hair thing happens to me too! I don't have facial hair, but when I need to get a haircut almost every two weeks if I want my hair to look even. My left side grows way faster than the right side, having bangs was really annoying
alg11297 (4 years ago)
Do your balls hang low do they wobble to and fro? is the left one lower?
Yoeri Jansen (4 years ago)
mine does hang lower on the left. Idk if it's bigger or not. Never looked at it that way xD
littleworldscollide (4 years ago)
can you tie them in a knot can you tie them in a bow can you throw them over your shoulder like a continental soldier
stayinguplate (4 years ago)
loved it this one made me giggle
Jillian (4 years ago)
Cristen, I love you and the amazing message you send with humor.
elwellington (4 years ago)
Joy givers
Rose J. Williams (4 years ago)
Cristen this video is funny with the fruit euphemisms and the joke about whos eating the nectarine
Flanclanman (4 years ago)
My breasts are significantly different sizes and they're big, so it's really noticeable. The left one is about a G cup, and the right one about an E cup. It made me feel like a freak for years, and I still have problems taking my bra off in front of others. I'm getting more accepting of my boobs as I get older, but it still plays on my mind. Hopefully one day I won't care any more... or I'll earn enough money to justify a breast reduction.
With me, considering I'm still in my youth years, I have pretty big boobs for my age and I get very self conscious about them because way older men mistake me for being a short 20 year old 😅.
Zoe Lovatt (3 years ago)
Haha. I'm exactly the same but on the other side. It makes bra shopping suck.
jcthorpe69 (4 years ago)
You shouldn't be self-conscious about that at all. No guy I know cares and if there is some jerk that does, have him hit the bricks.  I dated a girl that was a D+ on side and about a C on the other and I couldn't possibility care less.  Because they had the one thing all guys really care about, which is accessibility!!!   :)
pegasister42 (4 years ago)
You can probably apply to get a reduction and have it covered by insurance because of the size difference.
veritaserum (4 years ago)
When I was like 12 I started developing scoliosis, and when I was 14 I noticed my left boob was smaller than the right. I tried not to panic or become self conscious but well... I was a teenager.  Turns out it had to do with the scoliosis. I had surgery a little after I turned 15, I have titanium bars and screws all along my spine now. And my breasts suddenly evened out.  While I was at the hospital I learned that it's a common thing to happen.
DarkyLight Star (10 months ago)
Mine to my right boobs its bigger than left boobs
Victoria K (4 years ago)
Huh..I got mild scoliosis when I was 10 and my right boob is slightly bigger than my left. 
MissTasha3 (4 years ago)
Pretty much everything on my left is slightly bigger than on my right. My hands, breasts, eyes which is kind of weird.
라인 (6 months ago)
MissTasha3 same on the breast!
Keira Faulds (7 months ago)
Jen Yoon (2 years ago)
+MissTasha3 Same here, I don't wanna care about it, but It always annoys me whenever I looked at myself in the mirror.
BlueHypothermicReality (3 years ago)
cool same for me but opposite but its mostly my hands and feet and boobs idk if my face is...
DJSqaired (4 years ago)
My right eye is smaller, my right boob is bigger, and my right toes are longer. We're all weird!
Sam P (4 years ago)
Its the right testie thats usually bigger. Its because of greek artistic theory, where they assumed because the left testie is hanging lower it must be heavier and therefore bigger. So in their practise they also made them look bigger.
Molly Zamora (4 years ago)
Yup my left girl is a little bigger than the right. Jigglejogglers are so cool!
ghost245353 (4 years ago)
i made comment before watching the video
ghost245353 (4 years ago)
i know someone who is skinny and has a 52 inch bust measurement because she is a 36I (natural)
Briar Lynn (4 years ago)
Right side has always been bigger than my left.  Never thought it was a big deal, but hey, at least now I know why it happens~
Heather O'Connor (4 years ago)
No one is more hilarious and informative than Cristen. LLLOOOVVVEEE YYYOOOUUU
Jaimes (4 years ago)
My right is slightly larger than my left, and it has a fuller shape than the left. It's not noticeable when I'm wearing a regular bra, especially ones that are lightly lined, but I generally stay away from push-ups (also, push-ups for DDD rarely do the job without overspill).
Rachel Reding (4 years ago)
When I went through puberty my mom always taught me that my boobs can develop asymmetrically. My breasts have evened out since then but back in the day I was asymmetrical and I never felt self-conscious about it because my mom always told me that it is common and happens to many women. And what you're doing is the same thing. Teaching about stretch marks, cellulite, and breasts shows me and other women that these are all normal processes the body goes through. So awesome video!
relunnie21 (4 years ago)
bodies are so cool
Ya Girl (4 years ago)
My left boob was always slightly larger than the right. I always thought there was something wrong xD
ZahradeLancre (4 years ago)
my left boob is the bigger one
corduroy99 (4 years ago)
Next up, why are SCHLONGS different sizes ...
Alex Waters (4 years ago)
My breasts are asymmetrical,so I'm going to ask my doctor about Atypical Hyperplasia next time I see her. I was very malnourished in my teens, so I've always wondered if that kind of...caused poor development.
Jaclyn Lizzi (4 years ago)
Mine look the exact same as far as I can tell XD
Emily McDonald (4 years ago)
Left boob is larger than the right one but not noticeably :P 
john sale (4 years ago)
JanetFunkYeah (4 years ago)
Just like mine. I was actually scrolling down until I found a comment like this. lol
Rekalty (4 years ago)
This requires further study...I volunteer as, well, you know.
2010MusicGlobal (4 years ago)
after seeing this i went to the mirror and looked at my boobs for like 10 mins to see if they were the same size lol 
Stephie (4 years ago)
My left nipple is much larger than my right, but the boobs themselves seem to be the same.
נεηηα (1 year ago)
Stephie saaaaame
HaakonTheViking (4 years ago)
My left nutt hangs lower than the other
Mj Buchanan (4 years ago)
Mine too!!
pct (4 years ago)
mine is too! :D
susan blue (4 years ago)
Love your videos, and this was quite an informative bit of fun :) I shall now be asking all my male friends about their right and left balls. Is that odd? Not for Science!
shandalalala (4 years ago)
I'm pretty sure mine are the same size. One may be a smidgen smaller than the other. I may have to study them later because I forgot which one it was. 
Molly Duncan (4 years ago)
Glad this came up! (Here was I thinking that I was weird...) For a whole year when i hit puberty, I only had the one boob (embarrassing, right?) They've evened out now but one is still just a little bigger than the other...But who cares? As long as one is happy with one's own "Basket of fruit", then there's no need to worry about a tiny bit of asymmetry! 
Autty Elyse (4 years ago)
Why'd you have to do that to me.. now im hungry oAo

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