Breast Care A-Z · Concept · IMMRECON

Immediate reconstruction

also: immediate breast reconstruction, same-stage reconstruction, reconstruction at the time of mastectomy

Immediate reconstruction is breast reconstruction performed during the same operation as the mastectomy, so the breast shape is already begun when you wake. You may be deciding between immediate and delayed reconstruction — one of the more consequential choices in the mastectomy pathway, depending on the cancer, any radiotherapy plan, and your own preference.

Quick answers

Will immediate reconstruction delay my chemotherapy?

Usually not significantly. The combined mastectomy plus reconstruction operation is a single recovery, and chemotherapy is typically started 4–6 weeks after surgery — the same window as for mastectomy alone. Where the reconstruction has had complications, chemotherapy is occasionally delayed by a couple of weeks.

Can I change my mind partway through?

The decision about immediate versus delayed reconstruction is made before surgery, in consultation. Once at the operation, the chosen approach is performed. If the patient prefers to defer, that decision is made beforehand. If a reconstruction has been planned and complications during surgery make immediate reconstruction less safe, the surgeon may convert to a delayed approach (taking the immediate steps but deferring the implant or flap placement) — this is uncommon but is part of the surgical planning.

Will I look the same as before?

Cosmetic outcomes after immediate reconstruction are usually good but not identical to natural breasts. With nipple-sparing or skin-sparing mastectomy plus a well-matched implant or autologous reconstruction, most patients look entirely normal in clothing and reasonably natural unclothed. Photographs of a range of outcomes are shown at consultation to set realistic expectations.

Immediate Breast Reconstruction -- Breastory Encyclopaedia Plate LXVIII Plate covering immediate breast reconstruction performed at the time of mastectomy: timing, patient selection, surgical options, and comparison with delayed reconstruction. SURGERY · RECONSTRUCTIVE TIMING PLATE LXVIII immediate breast reconstruction immediate IBR · single-stage reconstruction reconstruction performed at the time of mastectomy in a single anaesthetic, preserving the breast skin envelope and avoiding a period of breastlessness FIG 01 — Immediate (Path A) vs Delayed (Path B) reconstruction timeline PATH A — IMMEDIATE Mastectomy decision Single theatre list Mastectomy + Reconstruction same anaesthetic, same list expander / implant / flap placed Patient wakes with breast mound no period of breastlessness Recovery 1–5 days (type-dependent) Final result: breast mound PATH B — DELAYED Mastectomy alone flat chest post-op Waiting period Adjuvant chemo / radiotherapy weeks to years Second surgery: reconstruction separate anaesthetic Recovery second surgical episode Final result: breast mound i — single anaesthetic (immediate path only) ii — skin envelope preserved (SSM / NSM technique) iii — tissue expander or implant placed same sitting iv — psychological benefit: no period of breastlessness v — delayed: indicated when post-op radiotherapy planned Who is suitable for immediate? No post-op radiotherapy planned Skin-sparing or nipple-sparing mastectomy Patient fit for longer operation No significant comorbidities Oncologically safe (no locally advanced disease) Options at same sitting Tissue expander most common immediate option Direct-to-implant selected cases: good skin/muscle Immediate autologous flap DIEP / LD — specialist centres FIG 02 — Immediate vs Delayed reconstruction: 10-point comparison Parameter Immediate Delayed Timing Same operation as mastectomy Separate second operation Anaesthetics One Two Psychological No breastlessness Period of being flat Skin Envelope preserved (SSM/NSM) Skin contraction occurs Radiotherapy Avoid if RT planned Allows RT first then reconstruct Complication risk Marginally higher (longer op) Baseline Waiting period None Weeks to years Oncological safety Equivalent Equivalent Patient preference ~60% prefer immediate ~40% choose delayed Suitability cT1-2, no planned RT cT3-4, planned RT, patient choice FIG 03 — Factors influencing reconstruction timing decision Factor Immediate Delayed Post-op RT planned Contraindication Preferred Locally advanced (T3-4) MDT discussion Often preferred BRCA prophylactic Ideal candidate Less common Comorbidities Longer op risk assessed Lower operative risk Patient's wishes Most prefer immediate When RT needed Neoadjuvant chemo Complete first Complete first Skin envelope Preserved (advantage) Contracts (disadvantage) Oncoplastic centre Required Required Surgeon experience Oncoplastic training essential Same requirement FIG 04 — Immediate reconstruction pathway 1 Breast cancer diagnosis + mastectomy decision 2 RT planning assessment (will post-op RT be needed?) 3 Reconstruction timing discussion + consent 4 Mastectomy + immediate reconstruction (same theatre) 5 Recovery 1–5 days depending on type 6 Adjuvant treatment as needed FIG 05 — Immediate reconstruction techniques Immediate tissue expander Immediate direct-to-implant Immediate DIEP (free flap) Immediate LD flap NSM + immediate implant SSM + immediate reconstruction FIG 06 — Key statistics ~60% of reconstruction patients choose immediate reconstruction [1] Equivalent oncological outcomes to delayed reconstruction [2] ~10% longer operative time vs mastectomy alone [3] Higher patient satisfaction vs delayed in selected patients [4] References 1. NHS Digital. Hospital episode statistics 2022 2. Jeevan R et al. UK mastectomy and reconstruction. BMJ 2010 3. NICE NG101. Early breast cancer 2023 4. Atisha DM et al. Immediate vs delayed reconstruction QoL. Plast Reconstr Surg 2011 5. Kronowitz SJ. Delayed-immediate breast reconstruction. Plast Reconstr Surg 2010 Clinically authored by Dr Fiona Tsang-Wright , FRCS (Gen Surg) GMC 4549831 · ORCID 0000-0003-4801-026X
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Definition
Immediate reconstruction is breast reconstruction performed at the same operation as a mastectomy — the patient wakes up with a reconstructed breast in place — rather than as a separate operation months or years later.

Common questions The questions patients ask first

Will immediate reconstruction delay my chemotherapy?
Usually not significantly5. The combined mastectomy plus reconstruction operation is a single recovery, and chemotherapy is typically started 4–6 weeks after surgery — the same window as for mastectomy alone5. Where the reconstruction has had complications, chemotherapy is occasionally delayed by a couple of weeks.
Can I change my mind partway through?
The decision about immediate versus delayed reconstruction is made before surgery, in consultation. Once at the operation, the chosen approach is performed. If the patient prefers to defer, that decision is made beforehand. If a reconstruction has been planned and complications during surgery make immediate reconstruction less safe, the surgeon may convert to a delayed approach (taking the immediate steps but deferring the implant or flap placement) — this is uncommon but is part of the surgical planning.
Will I look the same as before?
Cosmetic outcomes after immediate reconstruction are usually good but not identical to natural breasts. With nipple-sparing or skin-sparing mastectomy plus a well-matched implant or autologous reconstruction, most patients look entirely normal in clothing and reasonably natural unclothed. Photographs of a range of outcomes are shown at consultation to set realistic expectations.
What if I have radiotherapy after immediate implant reconstruction?
The implant cosmetic outcome can be compromised by radiotherapy — the implant capsule can contract and cause distortion. Some patients accept this and have a revision later; others have a delayed conversion to autologous reconstruction. Where radiotherapy is anticipated and an immediate reconstruction is wanted, autologous tissue is usually preferred.

Immediate reconstruction is breast reconstruction performed at the same operation as a mastectomy — the patient wakes up with a reconstructed breast in place — rather than as a separate operation months or years later.

Immediate reconstruction is the most common reconstruction approach in modern UK practice when reconstruction is wanted14. It preserves the breast skin envelope, gives the most natural-looking long-term result for most patients, and avoids the period between mastectomy and reconstruction. Under NICE NG101, immediate reconstruction is offered to everyone having a mastectomy — including those who may need radiotherapy — unless other health conditions make reconstructive surgery unsafe. Delayed reconstruction remains a valid choice when you want time to decide, or when you and the team agree that waiting until adjuvant treatment is complete suits your situation.

Orientation Why you might be reading about this

You may be deciding whether to have reconstruction at the time of mastectomy or to wait. The choice between immediate and delayed reconstruction is one of the more consequential decisions in the mastectomy pathway, and the right answer depends on the cancer, the radiotherapy plan, and your own preference for timing.

Related terms: Delayed reconstruction · Mastectomy · Skin-sparing mastectomy · Nipple-sparing mastectomy · Implant reconstruction · Autologous reconstruction

Definition What “immediate” means in practice

Immediate reconstruction means the reconstruction is part of the same anaesthetic as the mastectomy. The mastectomy and reconstruction are planned together, performed together, and recovered from together. The patient does not have a period of being “after mastectomy but before reconstruction” — the reconstruction is in place from day one.

The two main types of immediate reconstruction are:

  • Implant-based reconstruction — usually with a silicone implant placed either in front of the chest-wall muscle (pre-pectoral, usually with an acellular dermal matrix) or behind it (sub-pectoral). The shorter-recovery option.
  • Autologous reconstruction — using the patient’s own tissue, most commonly the DIEP flap from the lower abdomen. The longer-recovery option but with a result that feels and ages more like a natural breast.

In rare cases, both are combined (a “hybrid” reconstruction).

Advantages Advantages of immediate reconstruction

  • Single recovery — one operation, one hospital stay, one period off work.
  • Preserves the breast skin envelope — the skin is not allowed to contract over a flat chest wall, which makes the reconstructed shape more natural2.
  • Better cosmetic outcome on average — particularly when paired with nipple-sparing or skin-sparing mastectomy2.
  • Psychological continuity — the patient does not experience a period of being post-mastectomy without a breast, which some patients find significantly easier.
  • Single decision point — the patient decides about reconstruction once, at the time of mastectomy.

Suitability When delayed reconstruction is preferred

Delayed reconstruction means having the mastectomy first and reconstruction months or years later, once cancer treatment (such as radiotherapy or chemotherapy) is complete. NICE NG101 recommends offering immediate reconstruction to all patients having a mastectomy, including those who may need radiotherapy. Radiotherapy affects reconstructed tissue — particularly implants — and the cosmetic outcome of immediate reconstruction can be compromised in patients who go on to have post-mastectomy radiotherapy3. The decision involves:

  • Confidence about the radiotherapy plan — if radiotherapy is unlikely, immediate reconstruction is generally preferred. If radiotherapy is planned, the type of reconstruction (implant-based vs autologous flap) and the timing are discussed in detail — radiotherapy affects implants more than your own tissue, but it is not in itself a reason to be denied an offer of immediate reconstruction.
  • The reconstruction type — autologous reconstructions tolerate radiotherapy better than implants3, so for patients having radiotherapy, an autologous immediate reconstruction is sometimes still chosen.
  • Patient preference — some patients want time to decide about reconstruction after the cancer treatment is complete.

For more on the trade-offs, see delayed reconstruction.

Limitations When immediate reconstruction is not advised

Immediate reconstruction is sometimes not the right choice when:

  • Implant-based immediate reconstruction when significant chest-wall radiotherapy is planned needs careful shared decision-making about long-term cosmetic risk — autologous reconstruction may tolerate radiotherapy better; delayed reconstruction may still be chosen, but immediate reconstruction remains an option to discuss.
  • Inflammatory breast cancer — reconstruction is usually delayed until cancer treatment is complete. Some locally advanced cancers are still discussed for immediate autologous reconstruction on an individual MDT basis — this is not a blanket exclusion.
  • Patient preference for time to decide.
  • Specific medical factors that make a longer operation higher-risk.

The decision is made jointly with the patient, the breast surgeon, and (for autologous reconstruction) the plastic-surgery colleague, and is informed by the multidisciplinary team’s view on radiotherapy and other adjuvant treatment.

Limitations What immediate reconstruction does not change

  • Cancer treatment — chemotherapy, radiotherapy, hormone therapy, targeted therapy are decided by the cancer’s biology, not by the reconstruction. Reconstruction does not delay or compromise these treatments.
  • The mastectomy itself — the breast tissue is removed in the same way regardless of whether reconstruction is done at the same operation.

At consultation What to discuss at consultation

If you are deciding between immediate and delayed reconstruction:

  • The radiotherapy plan — how confident is the team that radiotherapy will or will not be needed?
  • The reconstruction type — implant or autologous, with implications for radiotherapy tolerance.
  • Recovery and timing — single longer operation now, or two operations spaced over time.
  • Personal preference — particularly around the period between mastectomy and reconstruction in the delayed-reconstruction option.
  • Whether the option to change to delayed reconstruction remains open — usually yes, particularly with autologous techniques.

Resources Further reading

Sources & guidance

Every figure on this page is anchored to a published source. Tap a number in the text or below to jump to the reference.

  1. guideline National Institute for Health and Care Excellence (NICE). Early and locally advanced breast cancer: diagnosis and management (NG101). London: NICE. 2018 ;Last updated 2024; recommendation 1.6 — breast reconstruction https://www.nice.org.uk/guidance/ng101 Cited for: UK recommendation that immediate reconstruction be offered to all patients having mastectomy unless contraindicated; consider delayed where post-mastectomy radiotherapy is planned.
  2. guidance Association of Breast Surgery / British Association of Plastic, Reconstructive and Aesthetic Surgeons. Oncoplastic Breast Reconstruction: Guidelines for Best Practice. London: ABS / BAPRAS. 2021 https://associationofbreastsurgery.org.uk/professionals/information-hub/guidelines/2021/oncoplastic-breast-reconstruction-guidelines-for-best-practice Cited for: UK best-practice standards for immediate reconstruction; choice of skin-sparing/nipple-sparing mastectomy with immediate implant or autologous reconstruction.
  3. meta analysis Jagsi R, Momoh AO, Qi J, et al. Impact of radiotherapy on complications and patient-reported outcomes after breast reconstruction. Journal of the National Cancer Institute. 2018 ;110(2):157–165 doi:10.1093/jnci/djx148 Cited for: Implants tolerate post-mastectomy radiotherapy less well than autologous tissue (capsular contracture, distortion, higher revision rates) — informs immediate vs delayed choice.
  4. cohort Mennie JC, Mohanna PN, O'Donoghue JM, Rainsbury R, Cromwell DA. National trends in immediate and delayed post-mastectomy reconstruction procedures in England: a 7-year population-based cohort study. European Journal of Surgical Oncology. 2017 ;43(1):52–61 doi:10.1016/j.ejso.2016.09.019 Cited for: Immediate reconstruction is now the most common UK approach when reconstruction is wanted; trends over time.
  5. cohort Xavier Harmeling J, Kouwenberg CAE, Bijlard E, Burger KNJ, Jager A, Mureau MAM. The effect of immediate breast reconstruction on the timing of adjuvant chemotherapy: a systematic review. Breast Cancer Research and Treatment. 2015 ;153(2):241–251 doi:10.1007/s10549-015-3539-4 Cited for: Immediate reconstruction does not meaningfully delay adjuvant chemotherapy; typical chemotherapy start 4–6 weeks after surgery.