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A Closer Look To What Causes Small Breasts In Women

A Closer Look To What Causes Small Breasts In Women

When it comes to breast size, puberty can be a bit of a roll of the dice. Some women receive exactly what they wanted while others don’t exactly get they hoped for.

Breast size can be a huge source of insecurity for many women, especially with so much media emphasis being placed on having ‘perfect boobs’. Some women feel that their breasts simply aren’t big enough, and some women feel that they aren’t shapely enough or perky enough.

We’re going to take a look at why some women have small breasts than others, the reasons they don’t grow, and what can be done if you want to augment the size of your boobs you want.

A Closer Look To What Causes Small Breasts In Women

Why Do I Have Small Breasts?

There are a number of factors & reasons that causes small breast size.

  • Genetics. This is just about one of the biggest causes of small breast size. Just like everything in your body, family history will set the baseline for your breast size. If your family has a history of small breast sizes, it’s going to be more likely that you have small breasts, and vice versa.


  • Hormones. If genetics provides the baseline, the action of hormones will have the most palpable effects on your breasts. They grow as a result of hormonal changes in puberty, they tend to swell when your body is ovulating, and as covered in the next bullet, pregnancy hormones play a part all of their own.
  • Pregnancy. While this strictly falls under hormones, the changes are quite significant. Hormonal changes as a result of pregnancy can increase the size of breasts, and the presence of milk for breastfeeding can increase volume a little further. Note that this is only a temporary size increase; they will return to their previous size approximately three to six months after you cease breastfeeding.


  • Weight. Breasts are made of several tissues, the majority of them being connective tissue and fat. The precise ratios will depend on the individual; for those women whose breasts are composed of more fat than connective tissue, you may notice a big difference in breast size when you gain or lose weight.
  • Exercise. Your pectoral muscles lie behind your breast tissue, and workouts that target them can push the breasts out a little further. This does not strictly do anything for breast size, but it does make them a bit fuller and more noticeable.


  • Medical conditions. Some conditions like Poland syndrome or Turner syndrome can affect the development of breasts during or before puberty.

Asymmetrical Breasts

Breasts are usually asymmetrical in size, shape, or position. Most breasts and nipples tend not to match each other, so unevenness in the chest area is not usually cause for concern. During puberty, each breast generally develops at a slightly different pace, hence the asymmetry, and as we’ve seen, breasts are constantly affected by hormones.

However, if the size difference is over 20%, you may wish to see a doctor, as such a large difference in breast tissue or breast density may be a risk factor for breast cancer.

Asymmetrical Breasts

Solutions For Small Breasts

While it is possible for breast size to increase as body weight increases (breasts are made of fat, after all), this is not a guaranteed size increase for breasts, and thus is not reliable for all women. The only reliable way to truly increase breast size is by augmentation.

The usual method of breast augmentation involves silicone implants, which may be filled by either silicone gel or saline. These are inserted surgically either beneath the pectoral muscle (a submuscular implant) or beneath the breast (a submammary implant). As this is a surgical procedure, some recovery time is necessary; this is generally around two weeks.

While these implants are not permanent, they are reasonably long-lasting, with a lifespan of 7 to 10 years. While there are some possible side effects, most of the time they simply sit there. The biggest downside is that most of the time, they don’t quite look natural.

treatment breast filler

If you want a solution that isn’t quite as invasive and provides increased volume without the awkward look of implants, there is an alternative.

Breast fillers are an injection of hyaluronic acid into the breast, providing increased size. Hyaluronic acid is naturally biocompatible and is in fact already present in your tissues, so there isn’t any chance of rejection. All it does is increase breast size, usually up to one cup larger, and it’ll feel and look entirely natural.

Fillers are not as permanent as implants; they’ll last for about 1 to 3 years at most. Since it’s a simple injection and not a surgical procedure, there is no recovery time, nor will there be any scarring. You can simply return to your typical routine after the procedure is finished. Should you be dissatisfied with the results, the treatment is also easily reversible.

Whether it’s for implants or for fillers, your aesthetic doctor will first perform a consultation to see if you’re eligible for either procedure, then they’ll determine how to achieve the results you want.

treatment breast filler

Tying It All Together

Bust size can form an important part of a woman’s self-image. Thankfully there are a ton of great breast augmentation procedures that give you highly realistic results.

There’s no reason to remain unhappy with your breast size. If you want to discreetly alter the size of your breasts, breast fillers can be a perfect solution with minimal downsides.


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