Radiation fibrosis is an uncomfortable side effect that can develop after radiation therapy for cancer, including breast cancer. Radiation is effective at destroying cancer cells, but it can also damage the healthy tissue around it, leading to radiation fibrosis.

If you develop radiation fibrosis, you might notice pain, stiffness, limited range of motion, skin changes, and tightness in the treated area. These symptoms can make everyday movements, like lifting your arms, harder and affect your quality of life.

As a physical therapist and a Board-Certified Oncology Specialist, radiation-induced fibrosis is something I often see and treat in my practice. Here are the best ways to manage radiation fibrosis to get your strength and mobility back.

What Is Radiation Fibrosis?

Radiation fibrosis is when tissue in your body gets damaged, hardens, or scars after radiation treatment. It can affect your muscles, tendons, ligaments, skin, and other tissues where you received radiation, limiting your range of motion and causing pain or tightness.

Radiation fibrosis can show up months after radiation ends, or sometimes even years later.

It’s a common side effect of breast cancer and head and neck cancer. In fact, studies show that up to 75% of patients develop moderate to severe fibrosis after radiation.

While there’s no cure, radiation fibrosis is something you can successfully treat with physical therapy to improve your quality of life.

Learn more about how to reduce the side effects of radiation therapy.

What Causes Radiation Fibrosis?

We don’t know exactly why radiation fibrosis happens.

The most likely explanation is that radiation damages cancer cells, but it also damages some healthy cells in the same area. When healthy cells get damaged, your body responds with inflammation and tries to repair itself.

Sometimes your body makes too much collagen and scar tissue during this healing process, which makes the tissue feel thick, tight, and less flexible than it should be.

You’re more likely to develop radiation fibrosis if you received higher doses of radiation or had a longer treatment course. Genetics may also play a role. Some people’s bodies just produce more scar tissue than others.

Learn more about the side effects of radiation for breast cancer.

How Is Radiation Fibrosis Diagnosed?

Your doctor will ask about your radiation treatment and what symptoms you’re experiencing. They’ll examine the treated area and check for thickening, stiffness, or restricted movement. Sometimes they’ll order an ultrasound or MRI to see how the tissue has changed.

Once you receive your diagnosis, you’re likely going to be referred to a physical therapist.

What Are the Symptoms of Radiation Fibrosis?

Radiation fibrosis can be very uncomfortable. If you’re living with it, you may experience:

• Limited range of motion: Scar tissue makes it harder to move, and you might notice stiffness when you lift your arm or turn your body.
• Pain: The treated area might hurt, especially when you move, and this pain can get in the way of things you used to do easily.
• Skin changes: Your skin might feel thicker, harder, or tighter than before.
• Swelling or lymphedema: Radiation can affect lymphatic vessels and drainage pathways, increasing the risk of swelling in the area.
• Weakness or muscle fatigue: Radiated muscles may lose strength or endurance over time because fibrosis reduces normal muscle elasticity.
• Other symptoms: Because radiation can affect deeper tissues, some people also notice nerve-related symptoms like tingling or burning, voice or swallowing changes from radiation to the head and neck, or discomfort in the chest or ribs from radiation to the chest wall.

Not everyone experiences the same symptoms. In my practice, people can have mild or severe symptoms, or, sometimes, no symptoms at all. However, they can appear anywhere from a few months to several years after you finish radiation therapy.

Learn more about the 5 things they never tell you about life after cancer.

What Are the Early Symptoms of Radiation Fibrosis?

Early on, you may notice:

• Mild tightness or stiffness when you move
• Your skin feeling slightly thicker or different when you touch it
• Certain movements that used to be easy becoming a bit harder
• Discomfort that comes and goes in the area where you received radiation treatment

If something feels off, even if it seems minor, talk to your doctor or physical therapist. Catching radiation fibrosis early can make a big difference and help you prevent severe symptoms.

How to Treat Radiation Fibrosis?

If you’ve developed radiation fibrosis, you don’t have to accept pain, discomfort, and limited movement as your new normal. There are steps you can take to manage your symptoms and feel better after cancer treatment.

As a Board-Certified Oncology Specialist, I use four main types of radiation fibrosis treatment with my patients:

• Stretches
• Manual therapy
• Skincare
• Exercise

Let’s take a closer look at them:

1. Stretches

Radiation fibrosis builds up like scar tissue. Gently stretching your muscles and tendons helps them stay long and flexible, reduces tightness, and improves how you move. Focus on the affected areas, like the front of your chest, your neck, or your shoulder.

If you don’t know where to start, I have a few helpful physical therapy guides:

Learn more about stretching after breast cancer and how it can help.

2. Manual Therapy

Manual therapy means using your hands to work on the affected tissue. These techniques can help break down scar tissue and improve flexibility. In my practice, common approaches include:

• Soft tissue mobilization: Gentle movements on your skin and muscles to break down fibrosis buildup and make the tissue more flexible
• Myofascial release: Focused movements that release tension in the fascia (the connective tissue around your muscles) to help everything work better
• Joint mobilization: Targeted movements that improve the range of motion in stiff joints
• Massage therapy: Massage movements that increase blood flow, reduce muscle tension, and ease discomfort
• Scar tissue massage: Gentle massage to minimize scar tissue and help the area move better

You can see a physical therapist to do these at a clinic, or learn how to do them at home. You can also mix both approaches to stay more consistent—doing these for just 5-10 minutes a day can make a big difference!

My physical therapy program, Breast Cancer Rehab, teaches you easy-to-follow manual therapy exercises that you can do at home.

3. Skin Care

You may already know that skin care is important during radiation, but it’s just as important after treatment ends.

During radiation therapy, it’s common for skin to get damaged. Many cancer patients develop blistering, burns, or other skin changes, along with inflammation and sensitivity. Radiation-induced fibrosis can thicken and harden tissue, but it can also make it more sensitive.

Keep using the lotion your radiation oncologist recommended, not just during treatment but for weeks or months after.

Some people need to use it for a year or two for the best skin health. Just make sure to avoid products with perfumes and alcohol because they dry out your skin and can make your symptoms worse.

4. Exercises for Radiation Fibrosis Syndrome

Movement and exercise help manage radiation fibrosis.

Regular physical activity increases blood flow to the affected area, builds muscle strength, and reduces stiffness.

When building a new exercise routine, make sure to start low and slow to avoid inflammation, which can make radiation fibrosis symptoms worse. Gentle and light movements for just 15-30 minutes a day are perfect!

👉 You can get started with this FREE printable guide:

Can Radiation Fibrosis Be Reversed?

No, you typically can’t completely reverse radiation fibrosis syndrome. But that doesn’t mean you have to live with pain, limitations, and discomfort. Even if you can’t fully reverse the fibrosis, you can manage your symptoms and improve how you move.

Stretching, manual therapy, skincare, and exercise are all very effective ways to manage radiation fibrosis and reduce your symptoms.

Doctors Who Treat Radiation Fibrosis

A few different specialists can help treat radiation fibrosis:

• Your radiation oncologist monitors long-term side effects after treatment
• A physical therapist can teach you techniques and exercises to manage symptoms
• In some cases, a dermatologist might help with severe skin changes

For long-term treatment and management, you’ll most likely work with a physical therapist. However, physical therapy is also important to do at home to stay consistent with your routine.

Breast Cancer Rehab teaches you how to do physical therapy for radiation fibrosis at home.

FAQs

Is Radiation Fibrosis Fatal? 

No, radiation fibrosis is not fatal. It can cause uncomfortable symptoms like pain, stiffness, and limited movement, but it’s not life-threatening. That said, your quality of life matters. Just because something isn’t dangerous doesn’t mean you should have to live with it. Treatment can help you feel better and get back to doing the things you love.

Does Radiation Fibrosis Go Away?

No, radiation fibrosis does not usually go away on its own. It’s a chronic condition, but you can reduce your symptoms and improve how you feel with stretching, manual therapy, skincare, and exercise. With consistent treatment, radiation fibrosis symptoms can become pretty minimal.

Does Massage Help Radiation Fibrosis? 

Yes, gentle massage can help radiation fibrosis. Soft tissue mobilization and scar tissue massage are especially helpful! They can break down fibrosis buildup, improve flexibility, and reduce discomfort. But it’s important to keep them gentle because deep or intense pressure can cause more inflammation.

More Support for Radiation-Induced Fibrosis

Radiation fibrosis develops after radiation therapy and can cause uncomfortable symptoms like limited range of motion, pain, and skin changes.

Even though radiation fibrosis is a chronic condition, you can manage it and reduce your symptoms. Stretching, manual therapy, skincare, and exercise all help improve how you feel and move.

To learn stretches, techniques, and exercises that you can do at home to manage radiation fibrosis, see my physical therapy program, Breast Cancer Rehab!