what is the apt  or normal size of breasts for a 20 year old?
414440
normal is relative.  What is normal for one person might not be normal for another.
990705
I agree with WickedMagnet. What is "normally"? I don't ever recall reading a book, or hear a hard and fast rule that said, "Women all get these boobs at this age. If you don't, you are not normal." Due to genetics, we all get different sizes and develop at different rates and times in our lives. All ranges are normal. No one ever likes what they have been given, the grass is always greener on the other side of the fence. Women with big ones wish they had smaller ones, and women without boobs wish they had them. There are problems with all sizes. Just be glad they are your own, and they are part of what makes you uniquely you.
244994
NOT NORMAL!!!! Go back to your doctor ASAP and if he still says nothing wrong, get a second opinion!  Your breasts are precious. Enough said.
1187957
It can be normal as long as they are not cancerous but you should have your breasts examined every 6 months just in case.
499947
Your going to have to be patient.\nSome extreme few never do.\nUntil then you can buy bras with extra padding to feel a little more comfortable around other females who you are noticing are getting boobs already.\nYou could be just a little slow in developing.\nIf the situation does not change there is always plastic surgery you can opt for at least 18 if things don't change.\nIn the meanwhile, its not so uncool.\nMost models are not well endowed.
803083
I know you dont want to hear your too young, but Im 19 and still growing. I am almost in a D and people say that its all hereditary but I think it has to do with how fast they grow over time. I know that sounds confusing but I have a younger sister with bigger boobs than me. You'll grow honey just takes some time. In the mean time you can buy bra's that push them up...and if you want a more distinct shape or something I think that sleeping in a bra (with no underwire) will give your boobs kind of a track to grow on. Instead of having floppy boobs when they get too big do that! Good luck
614462
Dont get them. Be happy the way you are. I'm 32A and happy with it, and because I'm small I wont sag when I get older (my friend is only 24 and a DD and is sagging). Besides that you'll have to get them redone after so many years. Like your self the way you are. Audrey Hepburn was small  (34 A) and was chosen by Empire magazine as one of the 100 Sexiest Stars in film history.  Also in the 20's the trend was to be flat chested there where bras made to flatten womens chest.\n\nHere is a link for you, that you should read (its great)\nhttp://www.retroradar.com/Dixieland___Thanks_for_the_Mam.68.0.html\n\none about the 20's trend\nhttp://www.fashion-era.com/flapper_fashion_1920s.htm#
193977
Hey don't feel bad for this.  I am 29 and I have small breasts.  I wear a B cup, but I don't have a lot of breast tissue around my nipple area.  Even my breasts are small I think they are very beautiful.  I like that my nipples are so soft, pink, perfect roundness, and since my breasts are small it makes my nipples stick out more (very attractive for my man).  Look to yourself and you will find some things you like about your breasts even though they are small.  Stay natural, it is the secret to everlasting beauty.
659891
I think beautiful breast come in all sizes. Its not the size that matters lol its the overall beauty... firmness counts.
1048616
your breast size is hereditary.....if there too small...implants
1083722
At 15 you're not even fully developed. It's possible for a woman to continue developing until she's 23 years old. Should I scare you by telling you that I knew a woman who had breast implants before the age of 18. The breast implants busted inside of her some years later, causing her death by silicone poisoning. Be careful, child... Normalcy isn't decided on how your breasts look.. saying you're not normal is like saying that you're not perfect... and perfection is just unreal.
153064
i believe its 34B. she doesn't have big breasts but she's beautiful for what she is and still very sexy for what she have.Ü
615740
Medium is fine.\nI think that people focus too much on breast size.
361502
Abnormal breast shape and size can be harmful to a woman's self esteem. It pays to know what some of the common differences in breast shape and size are. It is also very important to understand that almost no woman has two breasts of identical size and shape in the natural state. The differences are then just a matter of degrees.\n\nThe right versus the left breast of any woman is very often of different size and even a different shape. Although common, these differences are perceptible but not very great. If it is a newly noticed size difference, the first question that should be asked is whether or not there is any solid or cystic growth in one breast that is making it larger than the other. Therefore be sure to visit the doctor, if you haven't already, to be sure that there are no breast masses causing the discrepancy in size.\n\nThe three major determinants of breast appearance are size, shape of the individual breast and the position of the breast and nipple when standing in an upright position. If surgical correction is undertaken with cosmetic surgery, the best success is obtained with correction of size alone. If both size and shape are different, the surgical results are not as good because each breast requires a different surgical procedure
982049
About 110-115. But it really is an individual thing. Love your body just the way it is! All of the proportions will come in time. I have had friends who were small and lumpy or tall and stick-thin at that age, and they all grew into beautiful women.
791500
Very normal. Good size. You have nothing to worry about.\n\nChow!!
988057
As many of the people before have said, no less than a C, and more than likely a D.  You want something that will be in proportion to your height and build.  An A or B would be too small, and if you are trying to pass in the general public, you don't want to look overly busty and draw unwanted scrutiny.  Therefore, I'd avoid anything larger than a D.  And as for ribcage, you are probably at least a 38, and possibly a 40.