Yes. Frozen shoulder can happen after breast cancer treatment, especially when pain or recovery makes it hard to move the shoulder normally. The tissue around the shoulder joint can tighten, causing ongoing pain and stiffness and making it difficult to lift the arm or reach behind the back. However, treatment-related stiffness can also have other causes, so persistent or worsening symptoms should be assessed by the cancer care team.
How can breast cancer treatment lead to frozen shoulder?
Frozen shoulder, also called adhesive capsulitis, occurs when the connective tissue surrounding the shoulder joint becomes thick and tight. This limits how freely the joint moves and can cause ongoing pain. The exact reason this condition develops is not always clear, but keeping the shoulder still for a prolonged period can increase the risk.
Breast cancer treatment can affect shoulder movement in several ways. Surgery may cause pain, tightness, and changes in the surrounding tissues, making normal arm movement difficult during recovery. Procedures involving lymph node removal from the armpit can also affect shoulder mobility. These changes may lead someone to move the affected arm less than usual, which can contribute to the development of frozen shoulder. The American Cancer Society specifically discusses frozen shoulder as a possible movement problem after breast cancer lymph node surgery.
Can radiation therapy also affect shoulder movement?
Yes. Radiation therapy can contribute to tightness and reduced movement in the arm and shoulder after breast cancer treatment. However, stiffness after radiation does not necessarily mean that frozen shoulder has developed. Surgery-related changes, scar tissue, and other treatment effects may cause similar difficulties. According to Macmillan Cancer Support, surgery and radiotherapy can affect shoulder movement and strength, sometimes causing problems that continue or appear after treatment has finished.
What symptoms may occur with frozen shoulder after breast cancer treatment?
Frozen shoulder often develops gradually. Pain may appear first, followed by increasing stiffness and a noticeable loss of movement. The affected shoulder may become uncomfortable during everyday activities, even when there has been no new injury.
- Shoulder pain: An aching or persistent pain that may become more noticeable at night or when moving the arm.
- Difficulty raising the arm: Reaching overhead, reaching into a cupboard, or lifting the arm to dress may become harder.
- Restricted movement: Moving the arm outward, rotating it, or reaching behind the back may become increasingly difficult.
- Problems with daily activities: Getting dressed, washing the hair, bathing, or reaching for objects may require more effort.
- Sleep disruption: Shoulder discomfort may make sleeping on the affected side difficult or interrupt sleep.
These experiences are consistent with frozen shoulder but can also occur with other shoulder problems. The Mayo Clinic explains that frozen shoulder typically causes progressive pain and stiffness, with movement becoming more restricted over time. Recovery may take months or longer, and some people experience symptoms for several years.
Is every stiff shoulder after breast cancer treatment a frozen shoulder?
No. Several treatment-related problems can cause similar symptoms, and identifying the correct cause matters because treatment may differ.
For example, scar tissue around the breast or armpit may create tightness that restricts movement. Axillary web syndrome, also called lymphatic cording, can develop after lymph node surgery. It involves tight, cord-like bands under the skin, often extending from the armpit toward the arm, and can make arm movement painful or difficult. Lymphedema, which involves a buildup of fluid and swelling, can also cause heaviness or tightness in the affected arm.
Nerve-related pain or other shoulder conditions may cause additional symptoms. For this reason, new or persistent stiffness should not automatically be attributed to frozen shoulder, particularly when the symptoms are on the side of previous cancer treatment.
How is frozen shoulder diagnosed after breast cancer treatment?
A healthcare professional usually begins by asking when the symptoms started, whether they are improving or worsening, which movements are difficult, and what breast cancer treatments were performed. The examination may include checking the shoulder's range of motion, pain with movement, and the ability to move the arm without assistance.
One useful part of the examination is comparing movement that you perform yourself with movement the clinician performs while relaxing your arm. Frozen shoulder typically restricts both types of movement. The clinician may also examine the surrounding tissues and assess whether swelling, cording, or another problem could explain the symptoms.
Imaging is not always necessary to identify frozen shoulder. Depending on the examination and medical history, an X-ray, ultrasound, or MRI may be used to investigate other possible causes. The Mayo Clinic's guidance on diagnosis and treatment explains how a physical examination can assess shoulder movement and when imaging may help rule out other conditions.
What helps treat frozen shoulder after breast cancer treatment?
Treatment aims to reduce pain and gradually improve shoulder movement. The appropriate approach depends on the cause of the stiffness, how much movement is restricted, the stage of recovery, and any ongoing effects of cancer treatment.
Physiotherapy and guided exercises
Physiotherapy is often an important part of recovery. A physiotherapist familiar with breast cancer rehabilitation can assess shoulder movement and recommend exercises suited to the person's recovery and physical limitations. Treatment may include gentle stretching, range-of-motion exercises, posture guidance, and gradual strengthening when appropriate.
Exercises should be tailored to the stage of recovery. If surgery was recent, the type of operation, wound healing, reconstruction, and any surgical restrictions can affect which movements are appropriate. The American Cancer Society's guidance on exercises after breast cancer surgery recommends discussing exercise with the healthcare team before starting and adjusting the programme to individual needs.
Gentle, regular movement is generally preferable to keeping the shoulder completely still, but forceful stretching can aggravate pain. Follow the exercises prescribed by the treating clinician or physiotherapist, and report worsening pain, new swelling, or unusual changes rather than pushing through them.
Pain relief and other treatments
When pain makes movement difficult, a healthcare professional may recommend appropriate pain-relieving medicines after considering other medications, medical conditions, and recovery needs. A corticosteroid injection into the shoulder joint may be an option in selected cases, particularly when pain is limiting movement. Other procedures, such as hydrodilatation or surgery to release tight tissue, are considered only when appropriate for persistent symptoms that have not responded adequately to other treatment.
These treatments are not necessary for everyone. A clinician can help determine whether the shoulder problem is frozen shoulder or another treatment-related condition and select an approach based on the examination.
When should you contact your cancer care team?
Arrange an assessment if shoulder pain or stiffness persists, worsens, limits everyday activities, or makes it difficult to use the arm normally. Early evaluation can help identify the cause and prevent avoidable restrictions in movement.
Contact your healthcare team promptly if the treated-side arm develops new or increasing swelling, unusual heaviness, redness, warmth, or pain that is getting worse. These changes may point to another problem that needs assessment rather than frozen shoulder alone. Fever or redness around a healing surgical wound also warrants prompt medical advice. Sudden, severe shoulder pain or an abrupt inability to move the arm should be assessed urgently.
Breast cancer recovery can involve several overlapping effects on the shoulder, arm, and surrounding tissues. With the right assessment and a rehabilitation plan suited to the treatment history, many people can work toward improving movement, reducing discomfort, and returning to daily activities.