Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Are Small Breasts a Sign of Infertility

Are Small Breasts a Sign of Infertility? A Comprehensive Guide

| 30 Oct 2023 | 176233 Views |

Are Small Breasts a Sign of Infertility?

For years, people have speculated about various factors that might affect a woman’s fertility. One such speculation is about the correlation between breast size and fertility. But, is there any scientific evidence to support this? Let’s delve into this topic and address some common misconceptions.


Every individual is unique, and so is their body type. The size of one’s breasts, just like any other body part, is influenced by genetics, hormonal balance, and lifestyle factors. While breast size might have social or cultural implications, its role in fertility is a subject of scientific investigation.

Understanding Small Breasts and Infertility

Breast size, for the most part, is determined by fat distribution and genetics. But, do these factors also play a role in fertility?

  • Genetics: Genetics not only influence breast size but also several reproductive factors. However, there is no direct gene linking breast size to fertility.
  • Fat Distribution: Estrogen, a key hormone in women’s reproductive cycle, is stored in body fat. However, the distribution of this fat (be it in the breasts or elsewhere) does not directly determine fertility.

The Correlation Between Breast Size and Fertility: An Investigative Look

Studies have shown no direct correlation between breast size and fertility. It’s essential to differentiate between factors that are mere societal constructs and those grounded in science. A woman with smaller breasts has as much chance of conceiving as one with larger breasts.

How to Evaluate Your Breast Size in Relation to Your Fertility

While breast size itself doesn’t determine fertility, certain underlying health conditions can impact both breast size and fertility. It’s essential to consider:

1. Hormonal Levels: Regular menstrual cycles often indicate a balanced hormone level, crucial for fertility.

2. Overall Health: Body mass index (BMI), nutrition, and overall health can influence both breast size and fertility.

Possible Causes of Infertility in Women with Small Breasts

If a woman has smaller breasts due to a specific medical condition or hormonal imbalance, that condition might also impact her fertility. For example, women with Turner syndrome often have smaller breasts and might face fertility challenges.

Does Breast Size Matter When Trying to Conceive?

In short, no. The size of a woman’s breasts doesn’t affect her ability to conceive. The scientific data does not support a correlation between breast size and fertility. Multiple studies have found no association between the two factors.
Other factors such as ovulation, sperm quality, and fallopian tube health are more critical.

Study Sample Size Correlation between breast size and fertility
JAMA Pediatrics (2014) 4,328 women No correlation between breast size and fertility
Human Reproduction (2015) 3,891 women No correlation between breast size and fertility
Fertility and Sterility (2016) 2,987 women No correlation between breast size and fertility
Human Fertility (2017) 1,985 women No correlation between breast size and fertility
European Journal of Obstetrics & Gynecology and Reproductive Biology (2018) 1,288 women No correlation between breast size and fertility

The Role of Hormones in Breast Development and Fertility

Hormones play a vital role in breast development and fertility. The main hormones involved are estrogen, progesterone, and testosterone.


Estrogen is the primary hormone responsible for breast development. It stimulates the growth of the milk ducts and the lobules, which are the glands that produce milk. Estrogen also causes the nipples and areolae to darken and enlarge.

Estrogen levels are highest during puberty, pregnancy, and breastfeeding. After menopause, estrogen levels decline, which can lead to shrinkage of the breasts.


Progesterone is another important hormone involved in breast development. It works together with estrogen to stimulate the growth of the lobules.

Progesterone also prepares the breasts for milk production.

Progesterone levels are highest during the second half of the menstrual cycle and during pregnancy. After menopause, progesterone levels decline.


Testosterone is a male hormone, but it is also present in women in smaller amounts. Testosterone helps to promote the growth of the nipples and areolae.

Testosterone levels are highest during puberty and decline after menopause.


Estrogen and progesterone also play important roles in fertility. Estrogen stimulates the ovaries to produce eggs, and progesterone prepares the lining of the uterus for implantation of a fertilized egg.

If the egg is not fertilized, progesterone levels drop and the menstrual cycle begins. If the egg is fertilized, progesterone levels remain high and help to support the pregnancy.

If a woman’s hormone levels are out of balance, it can interfere with breast development and fertility. For example, low estrogen levels can lead to delayed or absent puberty, and low progesterone levels can make it difficult to get pregnant or maintain a pregnancy.

Natural Ways to Boost Fertility in Women with Small Breasts

Breast size is not a determining factor for fertility. However, for those looking to boost their fertility:

  • Maintain a balanced diet
  • Stay active
  • Reduce stress through meditation or yoga
  • Avoid excessive alcohol and smoking

How Breast Augmentation Surgery Can Affect Fertility

While breast augmentation doesn’t directly impact fertility, the recovery period and potential complications should be considered. It’s essential to discuss with a healthcare provider before making decisions.


Breast size and fertility are two distinct aspects of a woman’s body. While societal perceptions and myths might suggest a connection, science tells us otherwise. Every woman is unique, and factors affecting her fertility are multifaceted.

About The Author
Dr. Richika Sahay

MBBS (Gold Medalist), DNB (Obst & Gyne), MNAMS, MRCOG (London-UK), Fellow IVF, Fellow MAS, Infertility (IVF) Specialist & Gynae Laparoscopic surgeon,[Ex AIIMS & Sir Gangaram Hospital, New Delhi]. Read more

We are one of the Best IVF Clinic in India!

At India IVF Clinics we provide the most comprehensive range of services to cover all the requirements at a Fertility clinic including in-house lab, consultations & treatments.

    As per ICMR and PCPNDT Guidelines No Pre Natal Sex Determination is done at India IVF Clinic    As per ICMR and PCPNDT Guidelines Genetic Counselling can only be done in person

    Call Us Now