In short. Two different operations on two sides under one anaesthetic: what the combined plan achieves that neither alone can, and what it adds to the recovery.

Key points

  • The useful question before the operation is which half of the plan is the larger one, because that half sets the recovery.
  • A lift carries scars that an augmentation does not, and a longer period for those scars to mature.
  • If the lift side is the larger half, the recovery is a lift recovery.

A difference between the breasts is frequently two differences at once: one side has lost volume, and the other has lost height. Where that is the finding, the plan is two different operations carried out under one anaesthetic, and it achieves something neither operation alone can.

Why the two findings need different operations

Volume and position are separate properties. A breast that has descended can be filled and will still sit low, because adding tissue behind it does not raise the fold or the nipple. A breast that sits correctly but holds less tissue can be lifted and will still be smaller, because a lift repositions rather than adds. Where one side has each problem, one operation on each is the plan that answers both.

Which side is doing more work

The useful question before the operation is which half of the plan is the larger one, because that half sets the recovery. A lift carries scars that an augmentation does not, and a longer period for those scars to mature. If the lift side is the larger half, the recovery is a lift recovery. Knowing which half that is stops the plan being judged against the wrong expectation.

What it achieves

Balance in two dimensions rather than one. The augmented side is brought up to a volume the patient wanted, and the lifted side is brought to a position that matches. Neither operation would do that on its own: augmenting both would leave the descended side still descended, and lifting both would leave the smaller side still smaller. The combined plan is the only one that addresses both findings in one sitting.

What it adds

The recovery of the larger half, the scars of the larger half, and the length of the whole. Two procedures under one anaesthetic take longer than either alone, which matters for the reasons that length always matters, and the scars are not symmetrical: the augmented side and the lifted side leave different marks. That is worth accepting explicitly rather than discovering afterwards.

Expectations the combined plan does not meet

  • Scars that match on the two sides. A lift and an augmentation leave different marks.
  • A recovery as short as a single-sided augmentation, because the longer half governs it.
  • Symmetry in the first weeks, because the two sides swell and settle on different schedules.

Where the two findings are present, this is the plan that addresses them. Where only one is present, it is more operation than the difference requires, and a single-sided operation is the honest answer.

Related reading

Frequently asked questions

Why would one side need a lift and the other volume?

Because the two sides can differ in different ways. A breast that has lost volume and descended needs to be repositioned before volume is added to it, or the added volume sits low. The other side may hold its shape and simply be smaller. The two findings are independent, and it is common for them to point at different operations.

Is it one operation or two?

One anaesthetic, two procedures. Both are performed in the same sitting, which means one recovery and one period away from normal activity, and it also means the operation is as long as its longer half. Where the combined length is a concern, the plan can be divided into two stages instead, and that trade is discussed before the date is set.

Does the lifted side need volume added as well?

Not always. A lift repositions the breast and does not restore volume, so where the lifted side also lacks volume, that is a separate question. Where it holds enough tissue once it is repositioned, the lift alone is the plan for that side. Which of the two applies is decided by the examination rather than by the plan.

Risks & Limitations

  • No operation produces a matched pair. The two sides start differently and heal on different schedules, so a small residual difference in size, shape or position is the expected outcome rather than a complication.
  • The recovery is that of the larger of the two operations in the plan, not an average. A lift carries scars that an augmentation does not, and a longer period for those scars to mature.
  • Where the difference is partly in the chest wall, that part cannot be corrected from the breast and will remain after the operation.
  • Scars are permanent, and a plan that treats the two sides differently leaves scars of two different kinds.
  • A difference that is new, changing, or accompanied by a lump, skin change or nipple discharge is assessed as a diagnostic question before any surgical planning.
  • Changes in nipple or skin sensation may occur, are often temporary, and may be lasting. Where an implant is used, its own long-term considerations apply.

When to Seek Care

  • A new lump, a change in the skin over either breast, discharge from the nipple, or a change in the nipple itself &mdash — have it assessed promptly rather than waiting for a cosmetic appointment.
  • Fever, spreading redness, warmth or discharge from a wound, or a wound that is opening.
  • A breast that becomes hard, swollen, painful or red around an implant &mdash — contact the team the same day.
  • Calf pain, swelling or tenderness in one leg, or shortness of breath or chest pain &mdash — seek emergency care at once.
  • Chest pain, breathlessness or a racing heartbeat after surgery &mdash — seek emergency care at once.

References & Further Reading

  • American Society of Plastic Surgeons (ASPS) - breast surgery and patient safety guidance
  • National Institute for Health and Care Excellence (NICE, UK) - guidance on breast surgery and on venous thromboembolism prevention
  • Cochrane Library - systematic reviews in breast surgery and wound care
  • British Association of Plastic, Reconstructive and Aesthetic Surgeons (BAPRAS) - patient information on breast surgery
  • Chinese Medical Association Plastic Surgery Branch - clinical guidance

Medically reviewed by Tongchun Mao, MD (毛彤春), Deputy Director & Head of Aesthetic Surgery. Last reviewed: 19 September 2026.

This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.