Exercise after breast cancer: surgery to recovery

Yes, you can and should exercise after breast cancer. Gentle arm and shoulder exercises usually start the day after surgery, walking can begin as soon as you feel able, and supervised strength training is safe even if you have lymphoedema. The right professional builds this up gradually around your treatment.

Exercise is one part of cancer rehabilitation in the UK.

Can you exercise after breast cancer surgery?

Yes. Breast Cancer Now advises that arm and shoulder exercises help you regain movement after surgery and radiotherapy, ease tight scars and cording, prevent long-term stiffness and reduce the risk of lymphoedema [1].

A 2010 Cochrane review of 24 trials (2,132 women) found that structured exercise improved how far the shoulder could move in the short term, and that programmes delivered by physiotherapists also improved shoulder function, with the benefit still there at six months [8]. Macmillan's advice is to start moving as soon as possible after any cancer surgery, because it reduces the risk of complications [4].

How soon can I exercise after breast cancer surgery?

Sooner than most people expect. Breast Cancer Now says ideally you start the arm and shoulder exercises before surgery, then begin them again the day after your operation [1].

Do them three times a day for the first three months, then continue a smaller set once a day, and keep going through radiotherapy [1]. Two cautions from the same guidance:

• If you have had a reconstruction, or any other surgery, talk to your surgeon, breast care nurse or physiotherapist first [1].
• Stop and contact your team if you develop a seroma, a wound infection or healing problem, or pain that gets worse [1].

One nuance from Cochrane: starting very early improved short-term shoulder flexion more than delaying, but also increased wound drainage [8], so let your surgical team set the pace.

Arm and shoulder exercises after breast cancer

The largest UK trial here is PROSPER: 392 women at higher risk of arm problems after breast cancer surgery, across 17 NHS cancer centres [7]. Half received usual care (leaflets); half also had a physiotherapist-led programme of stretching, strengthening and physical activity, started 7 to 10 days after surgery, with follow-ups at one and three months [7].

At 12 months the exercise group had better arm function, less pain and fewer arm symptoms, with no increase in complications, lymphoedema or adverse events, and the programme cost the NHS less per patient [7].

The lesson: leaflet exercises help, but a structured, progressive programme with someone checking your technique helps more. PROSPER tested this in women at higher risk of arm problems: those having lymph nodes removed from the armpit or radiotherapy there, a BMI of 30 or more, or existing shoulder problems. It did not include women having reconstruction [7].

Lymphoedema and weight training after breast cancer

For most women, weight training is safe if it starts light, builds up slowly and is supervised at first [12]. In trials, this kind of weight training did not make arm lymphoedema worse or more likely, even after lymph nodes were removed [9, 10]. For warning signs, compression and lymphoedema exercises in more detail, see lymphoedema and exercise.

For decades women with, or at risk of, lymphoedema were told not to lift anything heavy. Two trials from the Physical Activity and Lymphedema (PAL) study overturned that.

In the first, 141 survivors with stable arm lymphoedema were randomised to twice-weekly, slowly progressive weight lifting or no exercise, wearing a compression garment [9]. After a year the proportion whose swelling increased by 5% or more was the same in both groups (11% vs 12%), and the lifters had fewer flare-ups (14% vs 29%), fewer symptoms, more strength and no serious adverse events [9].

In the second, 154 survivors at risk (at least two nodes removed, no swelling yet) followed the same design. New lymphoedema developed in 11% of lifters and 17% of controls; with five or more nodes removed, 7% vs 22% [10]. Cochrane likewise found no evidence of increased lymphoedema risk from exercise at any time point [8].

Three things keep this safe:

• Start low, progress slow. The ACSM roundtable calls a progressive large-muscle programme, two to three times a week, safe when supervised, and says there is not enough evidence on starting unsupervised if you have or are at risk of lymphoedema [12].
• Wear your garment. Macmillan advises wearing your compression garment when you exercise [4]; the PAL trials required one [9].
• Move regularly and gently. The NHS lists moving and exercising regularly among the ways to control lymphoedema [5]; Macmillan suggests avoiding static holds such as planks [4].

If you already have lymphoedema, Breast Cancer Now advises doing its arm and shoulder exercises for lymphoedema three or four times a day, slowly and gently, because fast movements do not let the lymph fluid drain properly [3].

If you notice new or increasing swelling, heaviness or tightness in the arm, hand or chest, pause and contact your lymphoedema service or breast care nurse.

Exercise during breast cancer treatment

You do not need to wait until treatment ends. The 2022 ASCO guideline recommends regular aerobic and resistance exercise during active treatment, based on evidence it improves fitness, strength and fatigue [13].

Breast Cancer Now gives treatment-specific pointers [2]:

• Chemotherapy: walking may boost energy and reduce fatigue. Avoid swimming while your immune system is affected. Peripheral neuropathy may make some exercises harder.
• Radiotherapy: avoid swimming at first because of skin reactions. Keep up your shoulder and arm exercises; walking, yoga and Pilates are fine if comfortable.
• Hormone therapy: weight-bearing exercise strengthens bones, which matters because some hormone treatments raise osteoporosis risk. Regular exercise may also ease joint pain and stiffness.

Weight can change too. Macmillan lists hormonal therapies such as tamoxifen and anastrozole, along with chemotherapy and steroids, among the treatments that may cause weight gain [14]. Keep taking your medication even if you think it is the cause, and speak to your GP, cancer doctor or nurse before trying to lose weight; they can refer you to a dietitian [14]. See nutrition during cancer treatment.

See also cancer-related fatigue, exercise during chemotherapy and, if you are still waiting for surgery, prehabilitation.

What is the best exercise after breast cancer?

There is no single best exercise, but the guidelines agree on a pattern. Breast Cancer Now recommends 30 minutes of moderate activity five times a week, which can be split into three 10-minute sessions [2]. That matches the UK Chief Medical Officers' target of at least 150 minutes of moderate activity a week plus muscle strengthening on at least two days [6].

The ACSM roundtable found the doses that improved fatigue, quality of life, physical function, anxiety and depression were roughly [12]:

• Aerobic: 30 to 60 minutes at moderate intensity, three times a week, for at least 12 weeks.
• Resistance: two sets of 8 to 15 repetitions, two to three times a week, for 8 to 12 weeks.

Breast Cancer Now lists the payoffs: less fatigue and weight gain, better bone health, lower lymphoedema risk, better mood and sleep, and lower long-term risk of heart attack and stroke [2]. Yoga and Pilates are useful, though poses that load the arms, such as planks, may need modifying [2]. Any activity is better than none, and people with long-term conditions "potentially have the most to gain" [6].

Does exercise reduce the risk of breast cancer coming back?

It may. Breast Cancer Now says physical activity "may reduce" the risk of breast cancer coming back [2]. The evidence comes from studies that follow women over time, and these link being active with better survival but cannot prove that exercise is the cause.

The best-known study followed 2,987 nurses with stage I to III breast cancer [11]. Compared with women doing under 3 MET-hours a week (less than an hour of average-pace walking), those doing 9 to 14.9 MET-hours had half the risk of dying from breast cancer (relative risk 0.50). The greatest benefit came at the equivalent of walking three to five hours a week at an average pace, with little extra gain beyond that [11].

A large randomised trial has tested the recurrence question directly in colon cancer; see bowel cancer and exercise. For the wider evidence, see exercise and cancer.

Who should you see?

In the first weeks after surgery, see a physiotherapist for cording, a stiff shoulder or pain. The PROSPER programme was physiotherapist-led [7]. For a progressive programme, including strength work that is safe with or at risk of lymphoedema, a clinical exercise physiologist (CEP) can assess you and build it around your treatment. NHS Health Careers lists oncology among the areas CEPs work in [15], and Macmillan names them among the professionals who can tell you which activities to avoid [4].

More on what a Clinical Exercise Physiologist is, your cancer rehabilitation team and how the exercise professions differ.

When to be cautious / talk to your doctor first

The ACSM roundtable states that most survivors need no formal assessment to start low-intensity walking or cycling, gradually progressed resistance training or flexibility work [12]. Breast Cancer Now advises talking to your treatment team or GP before anything vigorous [2]. Check first, or get specialist supervision, if any of these apply:

• Recent surgery or reconstruction, or a wound that is not healing [1]
• A seroma, wound infection or worsening pain: stop and contact your team [1]
• Lymphoedema or lymph nodes removed, before starting weights: begin supervised [12]
• New or increasing arm, hand or chest swelling, heaviness or tightness
• A central line or PICC line during chemotherapy: avoid swimming, because of the risk of infection, and avoid vigorous upper-body exercise, which could move the line [4]
• Low platelets during chemotherapy: exercise gently and avoid high-impact activities until your levels recover [4]
• Anaemia: listen to your body and rest when you need to until it improves [4]
• Cancer in the bones or bone thinning: avoid high-impact activities such as running [4]
• Feeling unwell or any symptom that worries you [4]

Bone health on hormone therapy is covered in osteoporosis and exercise.

Related reading

• Cancer rehabilitation in the UK
• Cancer FAQs
• Exercise after cancer treatment
• Exercise and prostate cancer
• Exercise with lung, ovarian, blood, skin and other cancers
• What a cancer exercise physiologist does (Health Hub)

Getting matched with a specialist

At the moment The Health Nav matches people with verified clinical exercise physiologists, in person in parts of south-west London and remotely across the UK. A CEP works alongside your breast care team, not instead of it. If you live in London, cancer rehab in London also covers NHS and charity options near you.

Request a match with a verified clinical exercise physiologist through The Health Nav. Questions first? Email support@thehealthnav.co.uk.

This article is general information and does not replace advice from your own healthcare team.

References

1. Breast Cancer Now. Exercises after breast cancer surgery. https://breastcancernow.org/about-breast-cancer/life-after-treatment/your-body-after-breast-cancer-treatment/exercises-after-breast-cancer-surgery (accessed 15 Sep 2026).
2. Breast Cancer Now. Physical activity, exercise and primary breast cancer. https://breastcancernow.org/about-breast-cancer/life-after-treatment/your-body-after-breast-cancer-treatment/physical-activity-exercise-and-primary-breast-cancer (accessed 15 Sep 2026).
3. Breast Cancer Now. Arm and shoulder exercises for lymphoedema. https://breastcancernow.org/about-breast-cancer/treatment/managing-lymphoedema/arm-and-shoulder-exercises-for-lymphoedema (accessed 12 Oct 2026).
4. Macmillan Cancer Support. Exercising safely when you have cancer. https://www.macmillan.org.uk/cancer-information-and-support/treatment/preparing-for-treatment/physical-activity-and-cancer/exercising-safely (accessed 15 Sep 2026).
5. NHS. Lymphoedema. https://www.nhs.uk/conditions/lymphoedema/ (accessed 15 Sep 2026).
6. UK Chief Medical Officers. UK Chief Medical Officers' physical activity guidelines. 2019. https://www.gov.uk/government/publications/physical-activity-guidelines-uk-chief-medical-officers-report/uk-chief-medical-officers-physical-activity-guidelines (accessed 15 Sep 2026).
7. Bruce J, Mazuquin B, Canaway A, et al. Exercise versus usual care after non-reconstructive breast cancer surgery (UK PROSPER): multicentre randomised controlled trial and economic evaluation. BMJ. 2021;375:e066542. https://doi.org/10.1136/bmj-2021-066542
8. McNeely ML, Campbell K, Ospina M, et al. Exercise interventions for upper-limb dysfunction due to breast cancer treatment. Cochrane Database Syst Rev. 2010;(6):CD005211. https://doi.org/10.1002/14651858.CD005211.pub2
9. Schmitz KH, Ahmed RL, Troxel A, et al. Weight lifting in women with breast-cancer-related lymphedema. N Engl J Med. 2009;361(7):664-673. https://doi.org/10.1056/NEJMoa0810118
10. Schmitz KH, Ahmed RL, Troxel AB, et al. Weight lifting for women at risk for breast cancer-related lymphedema: a randomized trial. JAMA. 2010;304(24):2699-2705. https://doi.org/10.1001/jama.2010.1837
11. Holmes MD, Chen WY, Feskanich D, Kroenke CH, Colditz GA. Physical activity and survival after breast cancer diagnosis. JAMA. 2005;293(20):2479-2486. https://doi.org/10.1001/jama.293.20.2479
12. Campbell KL, Winters-Stone KM, Wiskemann J, et al. Exercise Guidelines for Cancer Survivors: Consensus Statement from International Multidisciplinary Roundtable. Med Sci Sports Exerc. 2019;51(11):2375-2390. https://doi.org/10.1249/MSS.0000000000002116
13. Ligibel JA, Bohlke K, May AM, et al. Exercise, Diet, and Weight Management During Cancer Treatment: ASCO Guideline. J Clin Oncol. 2022;40(22):2491-2507. https://doi.org/10.1200/JCO.22.00687
14. Macmillan Cancer Support. Help with managing weight gain after cancer treatment. https://www.macmillan.org.uk/cancer-information-and-support/impacts-of-cancer/weight-gain-after-cancer-treatment (accessed 12 Oct 2026).
15. NHS Health Careers. Clinical exercise physiologist. https://www.healthcareers.nhs.uk/explore-roles/healthcare-science/roles-healthcare-science/physiological-sciences/clinical-exercise-physiologist (accessed 12 Oct 2026).