At What Age Do Your Breast Stop Developing?

Doctor Answers 102

Breast Growth

In general, breast development/growth ceases between ages 17-21 years.  A woman's age and breast growth is taken into consideration by plastic surgeons when discussing certain breast procedures with patients, especially younger patients.  That being said, breast size and shape never stop evolving during a woman's life and are affected by such things as pregnancy, breast feeding, weight gain/loss, and menopause.  These things will also affect a woman's breasts after having surgery such as breast augmentation, reduction, or lift.

Breast development

Growth is finished at an early age but changes continue throughout your life. Weight loss/gain, genetics, pregnancy, and age can all affect your breasts over a lifetime.

Breast development

Usually the female breasts complete their development 3 to 4 years after the first menstrual period; but structural changes will keep happening during the entire life (pregnancy, breastfeeding, menopause).


Kemil Issa, MD
Dominican Republic Plastic Surgeon
5.0 out of 5 stars 3 reviews

At what age do your breasts stop developing.

This is a great question and really has a few different answers. Most women start to notice an enlargement of their breast tissue around puberty. Puberty in women typically happens before most males and occurs anywhere from 9-16 years old. If a women has not noticed much change in her breasts after the age of 18, then they have likely finished "developing". Breasts can also change in size according to weight gain and loss. In addition, when a women becomes pregnant, the breast tissue is stimulated to "grow" in order to prepare for lactation.

Breasts Continue to Change Throughout a Woman's Life

This is a great question. Although the FDA issues standard guidelines for breast augmentation at age 18, actual breast development is very variable from woman to woman. I explain more in the video.

David B. Reath, MD
Knoxville Plastic Surgeon
5.0 out of 5 stars 97 reviews

At What Age Do Your Breast Stop Developing?

There is no answer that will cover an individual woman. Variances are common, but on average, breast growth is complete by late teens to early twenties. Breast changes do continue with pregnancy, and weight gain. 

Thank you for your question, best wishes. 

When do breasts stop developing

Each individual is different as to when they stop developing. This generally has to do with genetics (look at your mom, sister, aunts) and when you go through puberty (some women start early and some start much later). You generally continue to develop breasts some years past when you start your period. If you are a few years past, you shouldn't expect to great a change.

Breast Growth/Development

In general, breast development slows/ceases roughly 2-5 years after the onset of a patient's menstrual cycle.   However with that being said, women can still anticipate some physical changes (size and shape) in the appearance of ones breasts throughout her lifetime.  Factors such as fluctuations in weight (gains and losses), pregnancy, breast feeding, and menopause are some of the things that will affect the evolution of a woman's bust line over the course of her lifetime.  

If you are considering having a breast augmentation procedure, I would strongly recommend consulting with a board certified plastic surgeon.  At this consultation, your plastic surgeon will evaluate your breasts and your breast history (pattern of growth, patient age, lifestyle, etc...), to better guide the discussion as to what breast procedure would work best for you.  Good Luck!

Breast Growth

Generally speaking breast development stops between 17 and 21 years of age. However, breast size and shape are forever changing throughout a women’s life. Several factors play a role in these changes such as genetics, pregnancy, breastfeeding, menopause and weight gain or loss. The patient’s age and breast development are two factors that plastic surgeons take into account when considering breast surgery.

Scott Chapin, MD, FACS
Philadelphia Plastic Surgeon
4.5 out of 5 stars 9 reviews

Breast Development

Most girls breasts are fully developed, that is contain all the ducts and glands necessary to support the production of milk, by the time they are 14 to 15 years old. The breasts can continue to grow however, due to the deposition of fat over the course of a lifetime. Most board-certified plastic surgeons would not consider cosmetic surgery on any female breast under the age of 18. Reconstructive procedures such as the correction of Poland syndrome, or asymmetric hypertrophy, may be carried out at an earlier age. 

F. True Lansden, MD
Key West Plastic Surgeon
5.0 out of 5 stars 2 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.