Symmastia (Uniboob) & Fluffing

Symmastia (Uniboob) & Fluffing

Symmastia or Uniboob

What is Symmastia?

The correct medical term for the condition known as unibioob is symmastia. It is also less commonly known as breadloafing. The picture shows an example of symmastia.

This complication only occurs with unders (under the muscle breast implants). Uniboob occurs when the two breasts meet in the middle of the chest. The contact of the breasts with each other is not just externally. The implants themselves or the breast tissue from each breast will actually make permanent contact.

Symmastia typically occurs some time after surgery. When swelling begins to subside and the breast implants start to settle down in the muscle pocket that was dissected for them by the surgeon. However, as they settle, one or both implants may move slightly out of place and end up being located nearer to the sternum in the centre than was anticipated. This then causes the skin and breast tissue covering the implant to be pushed up.

Correction of Symmastia

A surgical procedure is required in order to rectify the condition. The procedure involves repositioning the implant back into its correct location in the pocket dissected for it originally. The procedure may also involve correctional dissection to the pocket if it was not performed correctly on the initial breast augmentation surgery.


After swelling has gone down following surgery, the pectoral muscle retracts and the skin covering the breasts stretches. This then allows the implants to settle down into the muscle pockets that were created for them by the surgeon. However, on some occasions, the patient's implants may fluff out rather than being squashed correctly into place in the pockets. This condition is known as fluffing.

All women who have undergone surgical breast augmentation will have experienced a varying extent of fluffing. With the more common overs (over the muscle), the condition may manifest when the breast tissue and skin stretch causing the implant to be pulled outwards with the stretching tissue. However, the fluffing effect is usually more noticeable with under the muscle implants. As the pectoral muscle settles post op. then it can pull the implant outwards as it relaxes.

Post operative swelling usually subsides at around 4 weeks and this is when the muscle, skin and tissue begin to relax, settle out and stretch into place. This is the time when fluffing may be experienced. Since unders are slightly more invasive and recovery times are slightly longer, then any fluffing with unders will be seen slightly later than with overs. However, recovery times do differ from one patient to another.