Is Cutting the Center Chest Muscle to Create Cleveage Safe?

12 years ago i went from an a cup to a c cup with a 360cc implant which look fine but have always been far apart with zero cleveage. i want to see more roundness in diameter and would like to see cleveage with out going larger than a d cup. i met with a new surgeon who suggests that i do a 425cc implant and that we do a minor cut on the muscle in between my breasts to get them closer. is this safe and common to do or will i get the dreaded uniboob?

Doctor Answers 10

Improving your cleavage

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or diminishing your intermammary distance can be achieved by partially releasing the muscle.  However, your intrinsic anatomy often determines what one is able to do and you have to understand an overly aggressive release with large implants could contribute to symmastia (aka uniboob).  Do your homework about your surgeon and know what the revision policy is as it could save you considerably if you do develop problems. 

Redding Plastic Surgeon
4.8 out of 5 stars 33 reviews


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Cleavage is dependent upon your anatomy.  Cutting the muscle along the inferior border will allow the implant to sit apropriately in your pocket but will not give more cleavage.

Steven Wallach, MD
New York Plastic Surgeon
4.2 out of 5 stars 30 reviews

Can I create cleavage with breast augmentation?

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Cleavage is something that is created by a bra for most women since the natural tendency of the breast is to fall laterally.  It is NOT safe to cut the medial attachment of the pectoralis muscle in order to create cleavage -- that can result in the dreaded "uniboob" you mentioned above.

Subglandular implants can be placed a little bit closer together than submuscular implants in general, but I have found the benefits of submuscular implants outweighs those of subglandular and perform submuscular breast augmentation in my Salt Lake City, Utah practice over 95% of the time.

Richard H. Fryer, MD
Salt Lake City Plastic Surgeon
4.9 out of 5 stars 298 reviews

Creating Cleavage By Breast Implant Revision

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Whether you can get better cleavage through an implant size increase and some release of the lower attachments of the pectoralis muscle depends on what your chest anatomy looks like. For some patients with widely spaced breasts, getting cleavage is simply an impossibility, For others, some improvement is possible. Changing the size of your implants by just 65cc is not likely to help much in terms of having them occupy more space closer to the sternum. That combined with closing down the sides of the pockets will be needed to create more of an effect. Cutting the pectoralis muscle more for purposes of cleavage is a double-edged sword, it may have some benefit but also risks creasting other problems as well. I would be certain to get several opinions before proceeding. 

Creating more Cleavage

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Thank you for your question.

When  contemplating revisionary surgery, please seek advice from plastic surgeons who have significant experience and ask to see many of their examples.

Generally, lateral displacement of the breast implants can cause greater space in the cleavage area and can be corrected by closing off the outer pockets (with capsulorrhaphy) and judiciously opening up the medial aspect of the pocket (cleavage area).  This has to be performed very carefully so as not to cause other problems (as you have mentioned above).

Best Wishes.

A small amount can be OK

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The attachment of the Pectoral muscles to the chest bone varies between patients. A small cut in this can be OK in some cases. It is a judgment call made at surgery.


Best Regards,

John Di Saia MD

John P. Di Saia, MD
Orange Plastic Surgeon

Release of chest muscle to produce cleavage is a risk

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The breast implant must be centered under the nipple and fit within the breast hand in glove, and if your breast is relatively widely spaced releasing the chest muscle will not help much. There is also a significant risk of a thin area and an animation deformity.  Our vote is to leave the muscle as it is.

Peter E. Johnson, MD
Chicago Plastic Surgeon
4.0 out of 5 stars 44 reviews

Is Cutting the Center Chest Muscle to Create Cleveage Safe?

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It is fine to thin the muscle to get the implants closer, but if you cut all the way through the muscle along the breastbone the results can be pretty bad and hard to correct.

Ronald V. DeMars, MD
Portland Plastic Surgeon
5.0 out of 5 stars 29 reviews

Releasing muscle for closer cleavage has risks

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Because the pectoral muscle over breast implants is attached along the breastbone (sternum) it can tend to push the implants apart. Releasing the muscle to allow the implants to come closer has a very high risk of shape abnormalities and what is called "animation deformity" whenever the muscles are flexed. It sounds like your surgeon is not planning a complete release so if done properly it should be helpful.

Richard Baxter, MD
Seattle Plastic Surgeon
4.9 out of 5 stars 59 reviews

Releasing the muscle between the breasts to improve cleavage

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I do not recommend cutting the muscle to allow your breasts to come closer together. Your plastic surgeon may have meant that he/she would release the capsule (scar that forms around the implant) to allow a little more motion. Cutting the muscle only serves to thin an already thin coverage in the middle of your breasts. I hope this helps.

Dr. Edwards

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.