The size and shape of women’s breasts varies considerably. Some women have a large amount of breast tissue, and therefore, have large breasts. Other women have a smaller amount of tissue with little breast fat.
 

Factors that may influence a woman’s breast size include:

  • Volume of breast tissue
  • Family history
  • Age
  • Weight loss or gain
  • History of pregnancies and lactation
  • Thickness and elasticity of the breast skin
  • Degree of hormonal influences on the breast (particularly estrogen and progesterone)
  • Menopause
 
A woman’s breasts are rarely balanced (symmetrical). Usually, one breast is slightly larger or smaller, higher or lower, or shaped differently than the other. The size and characteristics of the nipple also vary greater from one woman to another. In some women, the nipples are constantly erect. In others, they will only become erect when stimulated by cold or touch. Some women also have inverted (turned in) nipples. Inverted nipples are not a cause for concern unless the condition is a new change. Since there are hair follicles around the nipple, hair on the breast is not uncommon.

The nipple can be flat, round, or cylindrical in shape. The color of the nipple is determined by the thinness and pigmentation of its skin. The nipple and areola (pigmented region surrounding the nipple) contain specialized muscle fibers that respond to stimulation to make the nipple erect. The areola also houses the Montgomery’s gland that may appear as tiny, raised bumps on the surface of the areola. The Montgomery’s gland helps lubricate the areola. When the nipple is stimulated, the muscle fibers will contract, the areola will pucker, and the nipples become hard.

Breast shape and appearance undergo a number of changes as a woman ages. In young women, the breast skin stretches and expands as the breasts grow, creating a rounded appearance. Young women tend to have denser breasts (more glandular tissue) than older women.

During each menstrual cycle, breast tissue tends to swell from changes in the body’s levels of estrogen and progesterone. The milk glands and ducts enlarge, and in turn, the breasts retain water. During menstruation, breasts may temporarily feel swollen, painful, tender, or lumpy.

The Effects of Hormones on Breast Tissue

Breast Size, Appearance and Changes Overtime

The breast is responsive to a complex interplay of hormones that cause the breast tissue to develop, enlarge and produce milk. The three major hormones affecting the breast are estrogen, progesterone and prolactin, which cause glandular tissue in both the breast and uterus to change during a woman's menstrual cycle. Because of reduced hormonal levels, the breasts are less full for 1 to 2 weeks after menstrual flow; therefore, it may be easier to detect breast lumps during this time. Reduction of hormonal levels is also responsible for the breast's return to its pre-pregnant state after breast-feeding is concluded.

Breast shape and appearance change as a woman ages. In the young woman the breast skin is stretched and expanded by the developing breasts. The breast in the adolescent is usually hemispherical, rounded and equally full in all areas. As a woman gets older, the topside of the breast tissue settles to a lower position, the skin stretches and the shape of the breast changes. After menopause, with the decrease of hormonal activity, the composition of the breast changes; the amount of glandular tissue decreases and fat and ductal tissue become the predominant components of the breast. Reduction in glandular volume can result in further looseness of the breast skin

How to Measure Your Bra Size




Believe it or not, at least 80% of women wear an incorrectly sized bra! Most people wear a bra too large in the back and too small in the cups. And although the average bra size is often quoted as being 36C, this is just the most popular size that women buy. Most people who wear an "average" 36C bra should actually be wearing somewhere around a 32DD or even 30E.

So how do bra sizes work? Most people know that bra sizes are made up of two parts - a number and a letter. The number is known as the "band size" or "back size," and the letter is the "cup size." However, what many people do not realise is that cup sizes are in proportion to the band size, so a D cup, for example, is not the same size in every bra. A 32D is the same size as a 34C or 36B, but on a smaller frame. A 28F is actually five cup sizes smaller than a 38F, so it's not as big as it sounds![1]If you're fairly slim, then you may well need a large cup size even though your bust doesn't look any bigger than average.
Larger women may still need a small band size because this relates to the size of your ribcage only - you can still be curvy everywhere else! And losing or gaining just a few pounds is likely to have an effect on your bra size but it's not often considered even when other clothing is resized. And then there are the times when you go for so long wearing a certain size that you don't even realise it doesn't fit well anymore and you stop noticing the discomfort and treating it as "normal"! If you're looking for a better fit, here's how to find your true bra size.



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more... 6 Steps to measure your bra size

6 Steps to measure your bra size


1. Measure your band size

 

  • Run a tape measure all the way around your body just underneath your breasts and take a measurement in inches. Make sure the tape measure is horizontal and fairly snug. Your arms should be down.
  • If this measurement is an odd number, then you should try out bras in both the size below your measurement and the size above. [2] For example, if you measured 31 inches (78.7cm), your band size could be 30 or 32.
  • If your measurement is already an even number, this is almost always your band size, but you may need a smaller or larger size depending on your body type.
  • Some bra fitting guides and calculators will tell you to add four or five inches (10 to 12.5cm) to your underbust measurement, but this is outdated advice. The "add four" method was popularised by Warners in the 1930s when bra design was in its infancy and it simply doesn't work with modern bras

 2. Determine your cup size.

  • Since everyone's breasts are different in terms of shape (even between your own breasts), the most accurate way to determine your cup size is by using your current bra size as a starting point. The cups are sized relative to the band, so if you were to try a smaller band size but keep the same cup size, the cups would be too small.
  • For every band size you have dropped, you will need to increase the cups by one size. For example, if you are currently wearing a 34D bra, and you measure 28 inches, you should probably wear a 28F.
  • The majority of leading brands use UK cup sizing: AA, A, B, C, D, DD, E, F, FF, G, GG, H, HH, J, JJ, K, KK, L, LL. If you're shopping in the US you might see cup sizes such as DDD or DDDD. These are equivalent to E and F. If you're in any doubt, particularly with larger cup sizes, you can refer to an international bra sizing chart
3. Try on a bra with the band and cup size you've arrived at in these steps. You should not regard this as your definitive size until you have tried on a few bras, and even then you will often find you need a different size in different brands or styles of bra.

  • After taking the bra off its hanger the shoulder straps will need to be lengthened. Put your arms through them and lean forward slightly so that your bust falls into the cups.
  • Fasten the bra on the largest set of hooks and eyes. Don't worry if it's tricky to fasten, if you're trying a smaller back size you will notice that you need to stretch it around you to make the hooks and eyes meet.
  • Still leaning forward, take hold of the underwires and give them a wiggle from side to side to make sure you're settled comfortably into the cups.
  • For each side in turn, slip your hand into the side of the cup and lift each breast towards the centre.
  • You will probably have to adjust the length of the shoulder straps. Slip them off your shoulders and adjust the sliders so that the straps are short enough to stay in place but don't cut in.
4. Check the band size. The correct band size is the smallest you can comfortably wear. (This might be smaller than your underbust measurement-bra bands are quite stretchy, especially at 42+.) It needs to be firm enough that the bra is still fairly supportive without weighing down heavily on the shoulder straps.

  • You should be able to run your fingers around the inside of the band, but not much more. A good rule of thumb is that you should be able to fit no more than a fist under the back of the bra where your spine is at.
  • It should fit on the biggest adjustment, but will probably be too tight if you try to fasten it on the smallest size. Bras are designed to fit like this so that you can tighten the band as the elastic starts to wear out.
  • If the band is roomy enough for you to be able to comfortably fasten it on the tightest adjustment, try a smaller band, for example if a 32D is too loose, try a 30DD. Remember that the cup size has to be changed when you move to a different band size - for every band you go down, you must go up by one cup size in order for the cups to remain the same capacity and vice versa.
  • If you find the band painfully tight you should try going up a cup size because too small of cups can make a band which is too big or the right size seem ill fitting. If going up a size, maybe even several does not work, then try going a band up and a cup down, e.g. 28G to 30FF. However, try the first method before the latter.
5. Check the cup size. The correct cup size should be completely filled out with no wrinkling of the fabric or space in the cups, but any spillage or "double boob" means the cup size is too small, even in low cut or pushup bras.
 
  • Check around the cups for any bulging, not only at the front but also at the sides under your arms.
  • Make sure the underwire encloses your whole breast and lies flat against your rib cage.
  • Check at the sides under your arms to make sure the underwires are sitting on your ribs, not on soft breast tissue. If they're cutting into the sides of your breasts then you need a larger cup size. Also be aware that if you have been wearing a bra with a too big band and too small cups, you may have ended up with migrated tissue, which will seem to be armpit rolls, or back rolls. This can be fixed after getting a well fitting bra.
  • If the underwires are pressing painfully against your breastbone at the centre front you may need a smaller cup size or you could try a plunge style with a lower centre front (this is more likely to be an issue with the cups than the band.) Or you might just be human, and it's the shaping of your ribcage. In that case, wait for the bra to be "broken in" and see how it fits then, or go with the lower centre front.
  • If you think the cups might be too small but you're not sure, try on a bigger cup size as well to double check. It will usually be obvious if the smaller size fits better.
6. See how it looks with your top on. You've found a new bra that fits well, maybe in a different size or style to the ones you're used to. Now it's time to see what it does for your figure! If you're trying a t-shirt bra it's also important to make sure it gives you a smooth line under fitted clothes

  • If you look side on to the mirror, you should be able to see that your bust is approximately halfway between your elbow and your shoulder.
  • In a well fitting bra, your bustline will be supported at the right level. A lot of people find that their clothes fit a lot better, and they discover a waist that could never be seen before! If your bustline had previously been quite low because of a poorly supporting bra, you may even find that you need to wear a smaller dress size.
  • A fitted t-shirt will show up any bulges from cups which are too small, and likewise a moulded bra that is not filled out will show lines at the bust where the edge of the cups are visible. It's also useful to make sure that the colour of your bra is not showing through a thin or light coloured top - if you need to make your bra invisible, go for seamless cups which match your own skin colour rather than the colour of your top.
  • It is a common concern that wearing a smaller band size will make a big bulge around your back. However, these bulges are actually caused by the back of the bra riding up when it is too large. You should find that when the band sits lower at the back, it fits firmly and remains horizontal, rather than pushing upwards creating a bulge.

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