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A tissue expander is a temporary implant used to stretch skin and soft tissue over time. It is often used in breast reconstruction, but it can also be used in other reconstructive procedures. The device is placed under the skin or muscle, then gradually filled with sterile saline through a port. This slow expansion creates extra tissue for a later implant, repair, or reconstruction.
read more about tissue expander ...A tissue expander is used when a surgeon needs more skin or soft tissue for reconstruction. In breast reconstruction, it can help create space for a future breast implant after mastectomy. It may also be used after burns, trauma, birth differences, or removal of large skin lesions. The decision depends on the surgical goal, tissue quality, healing status, and patient’s overall health.
The surgeon places the expander in a pocket under the skin or muscle. After the incision heals, the expander is filled a little at a time during office visits. Each fill stretches the overlying tissue gradually, which helps the body grow extra skin and soft tissue. Once enough expansion is reached, the expander is removed or exchanged during another procedure.
Tissue expanders can vary in shape, size, surface texture, and port design. Some have an internal port that is filled by needle through the skin, while others have a remote port connected by tubing. Breast tissue expanders may be round, anatomical, or shaped to match the planned reconstruction. The surgeon selects the device based on the body area, tissue needs, and next surgical step.
Tissue expansion can cause tightness, pressure, soreness, swelling, or temporary skin changes after fills. Possible complications include infection, bleeding, skin breakdown, leakage, expander movement, pain, or poor wound healing. Patients should follow activity limits, incision care, and fill schedules from the surgical team. Fever, increasing redness, drainage, severe pain, or sudden swelling should be reported promptly.
No. A tissue expander is usually temporary and is removed or exchanged after enough tissue has stretched.
Fills can cause pressure, tightness, or soreness, but severe pain is not expected. Patients should tell the surgical team if discomfort is strong or does not improve.
The timeline varies by procedure, healing, and the amount of tissue needed. It can take weeks to months, depending on the surgical plan.
Yes. Infection is a possible complication and can require antibiotics or device removal. Redness, fever, drainage, or worsening pain should be checked quickly.
Breast Reconstruction: What Is It, Types, Procedure & Recovery. Cleveland Clinic. https://my.clevelandclinic.org/health/treatments/16809-breast-reconstruction. Date Accessed June 15, 2026.
Breast Reconstruction Using Implants. American Cancer Society. https://www.cancer.org/cancer/types/breast-cancer/reconstruction-surgery/breast-reconstruction-options/breast-reconstruction-using-implants.html. Date Accessed June 15, 2026.
Tissue Expansion. American Society of Plastic Surgeons. https://www.plasticsurgery.org/reconstructive-procedures/tissue-expansion. Date Accessed June 15, 2026.
Tissue Expansion Risks and Safety. American Society of Plastic Surgeons. https://www.plasticsurgery.org/reconstructive-procedures/tissue-expansion/safety. Date Accessed June 15, 2026.
Classification of Tissue Expanders and Accessories Under the General and Plastic Surgery Devices Panel. U.S. Food and Drug Administration. https://www.fda.gov/media/162808/download. Date Accessed June 15, 2026.