As women develop through puberty, their bodies change, including their breasts.
Not everyone develops in the same manner. Some people encounter problems during their development. One issue is the development of hypoplastic breasts.
This condition is also known as micromastia, breast hypoplasia and underdeveloped breasts. For women who experience this condition, it can be a very distressing period for them.
Thanks to modern techniques and technology, there are treatment options for those who experience hypoplastic breast tissue, such as breast surgery.
In this post, we will take a look at what hypoplastic breasts are, what treatment options are available as well as other aspects of the condition.
What are underdeveloped breasts?
Underdeveloped breasts refer to breasts that have not fully developed to their expected size and shape during puberty and adulthood.
This condition can occur for various reasons, and it may be characterised by smaller breasts, a lack of glandular tissue and fat, or other features that differ from what is considered typical breast development.
There is no official cut-off between having small breasts and underdeveloped breasts.
However, if there isn’t enough breast tissue to support breastfeeding then this is a sign of underdeveloped breasts and the condition can vary significantly.
While some women may experience a complete lack of breast development, for most women seeking treatment for breast hypoplasia, the challenges they encounter are primarily psychosocial.
These challenges often include low self-esteem, reluctance to disrobe in front of others, peer teasing, struggles with their feminine identity, and difficulties in forming relationships.
What causes underdeveloped breasts?
Underdeveloped breasts can be caused by various factors, and the exact cause may vary from person to person.

Some of the common factors that can contribute to underdeveloped breasts include:
Genetics
Genetic factors play a significant role in determining breast size and shape. If a person has a family history of smaller breasts, they may be more likely to have underdeveloped breasts themselves.
Genetics can determine the density of your breasts and what skin type you have. These are huge factors in the development of your breasts.
This study showed data from more than 1,600 women and found a total of seven genetic factors were significantly associated with breast size.
Hormonal Imbalances
Hormones, particularly oestrogen, are crucial for breast development. Any hormonal imbalances or conditions that affect hormone production or sensitivity can lead to underdeveloped breasts.
Conditions like polycystic ovary syndrome (PCOS) or hormonal medications can influence breast growth.
Low Body Fat
The size of your breasts is influenced by the presence of breast tissue and body fat, and excessively low body fat levels can lead to underdeveloped breasts.
Consequently, if you have an exceptionally low body fat percentage.
In some cases, attaining a healthy body fat range can naturally improve the appearance of underdeveloped breasts.
However, if you reach a healthy body fat percentage and still encounter underdeveloped breasts, you may wish to explore alternative options such as cosmetic surgery.
Nutrition
Adequate nutrition during childhood and puberty is essential for overall growth and development, including the development of breast tissue.
Poor nutrition can potentially impact breast development.
This particular study found that there was a direct link between vitamin D and calcium when it comes to breast density in premenopausal women.
Medical Conditions
Certain medical conditions or disorders can affect breast development. For example, Turner syndrome is a genetic disorder that can lead to underdeveloped breasts and other physical abnormalities.
A study conducted in 2015 showed that women with Turner’s syndrome may present with various breast deformities including hypoplasia.
Another medical condition that can impact breast development is Poland syndrome.
Poland syndrome is a rare congenital condition that typically affects the development of the chest muscles and may also impact the breast on the affected side of the body.
Poland syndrome is characterised by the absence or underdevelopment of the pectoral (chest) muscles on one side, which can result in a noticeable asymmetry in the chest and upper torso.
The impact of Poland syndrome on the breasts can vary widely from person to person.
In some cases, the absence or underdevelopment of the chest muscles on one side may lead to differences in breast size, shape, and position between the affected side and the unaffected side.
The breast on the affected side may be smaller and less developed compared to the opposite breast.
Medications
Some medications, especially those that affect hormone levels or have side effects on hormonal balance, can interfere with breast development.
Drugs such as Lupron are an example of this.
Lupron (leuprolide) was used to combat hormone levels in female children if they experienced early onset puberty.
Underlying Health Issues
In rare cases, underlying health issues that affect the endocrine system or the reproductive system can lead to underdeveloped breasts.
A study carried out in 2013 showed the effects that EDCs (endocrine-disrupting compounds) have on the development of the breasts.
This shows that the endocrine system plays a part in the development of breasts and should it be affected, can cause issues for breast development.
Hypothyroidism, often known as an underactive thyroid gland, can lead to a delayed onset of puberty, consequently postponing the growth and development of breasts.
How do you fix Underdeveloped Breasts?
Fixing or addressing underdeveloped breast tissue largely depends on an individual’s goals and preferences.
It’s important to remember that breast size and shape can vary widely among individuals, and there is no one-size-fits-all solution.

Here are some options to consider if you are interested in addressing underdeveloped breasts:
Breast Augmentation (Implants)
Breast augmentation is a surgical procedure in which breast implants are inserted to increase breast size and improve shape.
This is a popular option for individuals looking to enhance the size and fullness of their breasts.
It is a procedure that we at the New Birkdale Clinic have performed many times over with huge success.
Thanks to our world-class medical staff and the latest technology we can perform breast augmentation with ease.
Breast Fat Transfer Surgery
Breast fat transfer surgery, also known as natural breast augmentation, involves liposuction to remove fat from one area of the body and then injecting that fat into the breasts.
This is another procedure that our team can deliver at a world-class standard.
Our surgeons and medical team have carried out an abundance of breast fat transfer surgeries over the years.
This method can provide a more natural-looking result and is suitable for individuals who desire a modest increase in breast size.
If you’re someone who has a low body mass then this procedure may not be suitable for you.
If you do qualify for the procedure then the good news is that it is minimally invasive. Meaning you will recover faster than if you were to have breast augmentation surgery.
New Birkdale Clinic – Treating hypoplasia of the breasts
Hypoplastic breasts can be a serious condition that not only causes physical issues for patients but also psychological ones.
Our cosmetic surgery deals with breast augmentation and fat transfer procedures to help treat conditions such as hypoplastic breasts (micromastia).
If you’re interested in either of these procedures for treating underdeveloped breasts or other related breast conditions please contact us today.