Joint Pain After Radiotherapy: Why Cancer Treatment Can Affect Your Joints and What Helps

Umicellar is an authorized reseller of URAH, the joint-support cream mentioned in this article. Research sources are listed below.

You've finished cancer treatment, and you expected recovery to feel like getting back to normal. Instead, stiffness or aching in your joints may have lingered, or even appeared for the first time, in the weeks and months afterward. That's a recognized part of life after cancer treatment, and there's a lot that can help.

Joint symptoms after treatment can come from:

• radiotherapy, through gradual stiffening of soft tissues near the treated area

• hormone therapy, such as aromatase inhibitors

• chemotherapy, particularly some drugs used for breast cancer

• surgery, lymph-node treatment and reduced activity during treatment

Working out which is the main driver helps your care team choose the right approach. This article focuses on radiotherapy, with the other causes covered so you can discuss them with your oncology team.

Table of Contents

• At a Glance

• Why Radiotherapy Can Cause Joint Pain and Stiffness

• Other Cancer Treatments That Can Affect Joints

• Patterns by Treatment Area

• What Helps

• A Gentle Daily Routine for Joints That Stay Stiff

• When to Speak With Your Oncology Team

• Frequently Asked Questions

• References

At a Glance

Why do joints hurt after radiotherapy?

Radiation can cause gradual stiffening and scarring of soft tissues near the treated area, called radiation fibrosis, which can limit movement around nearby joints [1]. Other treatments, surgery and reduced activity can contribute too.

What helps most?

Physiotherapy from someone familiar with cancer-related changes, regular exercise appropriate to your recovery, and a plan agreed with your oncology team [2][3].

Is it permanent?

It varies. Some stiffness improves with consistent physiotherapy and movement; radiation fibrosis can be longer-term and benefits from ongoing work to maintain movement.

When to get checked

New back pain with leg weakness or bladder/bowel changes needs emergency care. New or worsening bone pain, new hip or pelvic pain, a hot swollen joint or new limb swelling should be discussed with your oncology team promptly.

Why Radiotherapy Can Cause Joint Pain and Stiffness

Radiotherapy is precisely targeted at cancer cells, but nearby tissues within or close to the treatment field also receive some radiation.

Radiation fibrosis

Over time, radiation can cause soft tissues such as joint capsules, ligaments, tendons and muscles to stiffen and scar. This radiation fibrosis can reduce range of motion and cause ongoing discomfort, and it may continue to develop for months or years after treatment ends [1]. It's one of the most common reasons for stiffness after radiotherapy.

Joints near the treatment field

When the shoulder, hip, spine or pelvis is within or near the treatment area, tissues around the joint may be affected, depending on the dose, the field and how your body heals.

Other Cancer Treatments That Can Affect Joints

Aromatase inhibitors and other hormone therapy

Many people treated for breast cancer take endocrine therapy. Aromatase inhibitors reduce estrogen production, while medicines such as tamoxifen block estrogen's effects in breast tissue [11]. Joint pain and stiffness are common side effects, particularly with aromatase inhibitors, and are separate from radiotherapy. If your joint symptoms started or worsened when hormone therapy began, tell your oncology team: they may suggest exercise, which reduced aromatase inhibitor joint pain in a randomized trial [2], recommend pain relief, or discuss adjusting or switching your therapy. Don't stop or change your cancer treatment on your own. Our guide to aromatase inhibitor joint pain covers this in more detail.

Chemotherapy

If your pain is widespread rather than concentrated near the treatment area, chemotherapy may be the main driver. Some drugs, particularly taxanes such as paclitaxel and docetaxel, are associated with joint and muscle aches during and after treatment. These often improve once treatment ends, although they can persist.

Surgery, lymph nodes and deconditioning

Surgery, lymph-node removal, reconstruction, scar tissue and weeks of reduced activity can all affect how joints feel, especially around the shoulder after breast cancer treatment.

Patterns by Treatment Area

• Breast cancer: shoulder stiffness and reduced range of motion are common, often from several overlapping factors: surgery, lymph-node treatment, cording, reconstruction, radiotherapy and reduced activity. An oncology-aware physiotherapist is especially helpful.

• Pelvic radiotherapy (for gynecological, bowel or prostate cancers): hip stiffness and discomfort with movement, sometimes developing gradually over months. Pelvic radiotherapy can occasionally weaken pelvic bones and cause small insufficiency fractures [10], so tell your oncology team about new hip, groin or pelvic pain so they can assess the cause before you increase exercise.

• Head and neck radiotherapy: jaw stiffness (trismus) and neck stiffness; specialist physiotherapy or speech and swallowing therapy can help.

• Widespread aches: more likely related to chemotherapy or hormone therapy than radiotherapy.

What Helps

Physiotherapy

Physiotherapy is the cornerstone for stiffness and reduced range of motion after radiotherapy. A physiotherapist familiar with cancer-related changes can work on radiation fibrosis, restore movement and build a program suited to your stage of recovery. For shoulder stiffness after breast cancer treatment, ask about referral early.

Regular exercise

Exercise guidelines for cancer survivors recommend regular aerobic and resistance exercise, which can improve fatigue, physical function and quality of life [3]. Walking, swimming, cycling and gentle strength work all count. Start gradually and agree your activity level with your oncology team, particularly in early recovery.

Heat and cold, with care

Gentle warmth can ease stiffness before movement, and a cool pack can help after more demanding activity. Irradiated skin can stay sensitive for a long time, so check with your care team before applying heat or cold packs to a treated area, and always use a cloth barrier.

If you have, or are at risk of, lymphedema

If lymph nodes were removed or treated, ask your care team or a lymphedema therapist before massaging the affected arm, leg or area, or using heat there [5]. Report any new swelling, heaviness or tightness promptly.

Pain relief

Ask your oncology team or pharmacist which pain relief suits you, as some medicines interact with cancer treatments or aren't suitable after certain therapies.

Nutrition and supplements

A balanced, Mediterranean-style diet supports recovery; see our guide to the anti-inflammatory diet for joint pain. Be cautious with supplements: in a large trial in women with aromatase inhibitor joint pain, omega-3 supplements did no better than placebo [4], and some supplements, including turmeric, may interact with cancer treatments. Discuss any supplement with your oncology team first.

A Gentle Daily Routine for Joints That Stay Stiff

If your team has assessed the stiffness and you also have an ongoing joint problem such as osteoarthritis, you may wish to discuss an optional daily joint-care product alongside rehabilitation.

This routine may suit you if:

• your oncology team has assessed your joint symptoms and cleared a joint cream for the area

• you've completed radiotherapy and your skin has healed

• you have an ongoing joint problem, such as osteoarthritis, alongside post-treatment stiffness

• you're doing, or planning, physiotherapy or regular movement

URAH Joint Health Omega-3 is a non-hormonal micellar glucosamine cream. You massage about 0.5 g gently over the joint that feels most consistently stiff, such as a knee or hip, morning and evening, and it absorbs without heat, smell or greasy residue.

Before you start:

• continue any prescribed skin care as directed [12]

• ask your oncology team whether a joint cream suits you, and which area and technique are appropriate

• use it only on fully healed, intact skin, never on skin that is irritated, broken, peeling or recently treated

• check with your care team or lymphedema therapist before massaging a limb with, or at risk of, lymphedema

• stop and speak with your team if any irritation occurs

How it works, briefly: glucosamine, a compound your body makes naturally, is a key starting substrate for cartilage's water-holding matrix [6]; laboratory findings are distinct from demonstrated clinical outcomes. URAH is an MD-Tech transdermal cream rather than an ordinary topical: its patented MD-Tech wraps micellar glucosamine in micelles designed to carry it through the skin over the area you apply it to, after which it enters circulation and becomes available beyond the application area.

What the formulation research shows

• 10× higher blood levels: in a lab study, blood glucosamine two hours after applying URAH's micellar glucosamine cream was about 10× higher than after an oral dose [7].

• A measured joint-level result: in an independent, peer-reviewed 12-week knee osteoarthritis study, medial joint-space width, an indirect X-ray measure of cartilage thickness, increased by approximately 61% in the group that had the cream massaged in by hand [8].

• Everyday experience: in a four-week survey across 16 Singapore clinics, people with osteoarthritis reported improved pain and function, with no adverse reactions or skin irritation reported [9].

The blood-level comparison was laboratory research, and the clinical studies involved knee osteoarthritis or people with osteoarthritis. Every group in the knee study used the cream, with no placebo group, and the clinic survey was open-label. None of these studies tested joint symptoms after cancer treatment, and URAH is a daily joint-support routine rather than a treatment for radiation fibrosis or treatment side effects.

URAH was developed in Singapore by scientist Dr Jonathan Obaje, with R&D going back to 1999, and has been recommended in hospitals and clinics for over 15 years.

A gentle daily routine, once you're cleared Targeted first. Circulates further. Built for daily joint support.

• Morning: after oncology clearance, massage approximately 0.5 g gently over the stiff joint on healed, intact skin, then do your physiotherapy exercises.

• Evening: repeat over the same area.

Every order comes with a 60-day money-back guarantee.

View URAH's Formula, Price & Delivery Options →

When to Speak With Your Oncology Team

Seek emergency assessment if you have:

• New back or neck pain with leg weakness, difficulty walking, numbness, or changes in bladder or bowel control [13]

• Sudden severe hip pain with inability to bear weight

Seek same-day advice if you have:

• A suddenly hot, swollen, painful joint, especially with fever

Contact your oncology team promptly if you have:

• New, persistent or worsening bone pain, especially at night

• New swelling, heaviness or tightness in an arm, leg or the treated area, which can be a sign of lymphedema

• Skin changes in the treated area, such as new redness, breakdown or a wound that won't heal

Also raise with your team:

• Joint pain or stiffness that limits daily activity or is getting worse

• Symptoms that started after a specific treatment, to help identify the cause

• Concerns about bone health, especially on aromatase inhibitors or after treatment-related menopause

• Any supplement or complementary therapy you're considering

Frequently Asked Questions

Why do my joints hurt after radiotherapy?

Often because of radiation fibrosis, a gradual stiffening of soft tissues near the treated area [1], although surgery, chemotherapy, hormone therapy and reduced activity can contribute. Your oncology team can help work out which is the main driver.

Does radiation cause joint pain and stiffness?

It can, particularly through radiation fibrosis around joints near the treatment field. It's most often seen in the shoulder after breast cancer treatment and in the hip after pelvic radiotherapy, and it may develop gradually over months.

How long does joint pain last after cancer treatment?

It depends on the cause. Chemotherapy-related aches often improve after treatment ends, though they can persist. Radiation fibrosis can be longer-term and benefits from ongoing physiotherapy. Aromatase inhibitor joint pain usually continues while you take the medicine, so discuss management with your oncology team.

Can exercise help joint pain after cancer treatment?

Yes. Exercise guidelines for cancer survivors support regular aerobic and resistance exercise [3], and exercise reduced aromatase inhibitor joint pain in a randomized trial [2]. Agree your activity level with your oncology team.

Is joint pain after radiotherapy the same as arthritis?

Not usually. Radiation fibrosis mainly affects soft tissues rather than cartilage, although it can feel similar. Significant swelling, warmth or symptoms in matching joints on both sides should be checked for inflammatory arthritis.

Can I use URAH on skin that has been treated with radiation?

Only once your oncology team has cleared it and the skin has fully healed. Avoid any area that is irritated, broken, peeling or recently treated, and check with your care team or a lymphedema therapist before massaging a limb with or at risk of lymphedema.

Further Reading

• Aromatase Inhibitor Joint Pain

• Why Your Joints Hurt More Since Perimenopause

• Shoulder Pain in the Morning

• Anti-Inflammatory Diet for Joint Pain

References

1. Stubblefield MD. Radiation fibrosis syndrome: neuromuscular and musculoskeletal complications in cancer survivors. PM&R. 2011;3(11):1041-1054.

2. Irwin ML, Cartmel B, Gross CP, et al. Randomized exercise trial of aromatase inhibitor-induced arthralgia in breast cancer survivors. Journal of Clinical Oncology. 2015;33(10):1104-1111.

3. Campbell KL, Winters-Stone KM, Wiskemann J, et al. Exercise guidelines for cancer survivors: consensus statement from international multidisciplinary roundtable. Medicine & Science in Sports & Exercise. 2019;51(11):2375-2390.

4. Hershman DL, Unger JM, Crew KD, et al. Randomized multicenter placebo-controlled trial of omega-3 fatty acids for the control of aromatase inhibitor-induced musculoskeletal pain: SWOG S0927. Journal of Clinical Oncology. 2015;33(17):1910-1917.

5. American Cancer Society. Lymphedema: what every woman with breast cancer should know. cancer.org.

6. Derfoul A, Miyoshi AD, Freeman DE, Tuan RS. Glucosamine promotes chondrogenic phenotype in both chondrocytes and mesenchymal stem cells and inhibits MMP-13 expression and matrix degradation. Osteoarthritis and Cartilage. 2007;15(6):646-655.

7. Liang K, Xu K, Bessarab D, Obaje J, Xu C. Arbutin encapsulated micelles improved transdermal delivery and suppression of cellular melanin production. BMC Research Notes. 2016;9:254. (Glucosamine plasma comparison reported in Supplementary Figure S7.)

8. Onigbinde AT, et al. Symptoms-modifying effects of electromotive administration of glucosamine sulphate among patients with knee osteoarthritis. Hong Kong Physiotherapy Journal. 2018;38(1):63-75.

9. Ng GH, Lee YM, Obaje J. A transdermal glucosamine formulation improves osteoarthritic symptoms in an open clinical survey. International Journal of Pharmacy and Pharmaceutical Sciences. 2011;3(3):80-83.

10. Macmillan Cancer Support. Pelvic insufficiency fractures. macmillan.org.uk.

11. National Cancer Institute. Hormone therapy for breast cancer. cancer.gov.

12. National Cancer Institute. Skin and nail changes during cancer treatment. cancer.gov.

13. National Institute for Health and Care Excellence (NICE). Spinal metastases and metastatic spinal cord compression (NG234). 2023.

This article is for general information and isn't a substitute for advice from your oncology team. Don't stop or change any cancer treatment without speaking to them, and check with them before starting any new product or supplement.

About the author Naomi Kim has over 7 years of experience in healthcare, including founding a health startup. She contributes to Umicellar's evidence-based approach to joint health and healthy aging.