Axillary Web Syndrome (AWS)—often called “cording”—is a condition that can develop after breast cancer surgery, particularly when lymph nodes are removed or disturbed.
It appears as tight, rope-like cords under the skin, usually starting in the armpit (axilla) and sometimes extending down the arm, into the forearm, or even toward the wrist or thumb.
These cords are thought to involve the lymphatic vessels and surrounding soft tissue, which become tightened and restricted as part of the healing response.
What does it feel like?
Patients commonly describe:
- A pulling or tight sensation when lifting the arm
- Pain or discomfort, especially with overhead movement
- A feeling of something “snapping” or “tightening”
- Restricted range of motion
- Visible or palpable cords under the skin when the arm is stretched
When does it occur?
- Most often develops 2–8 weeks after surgery, but can appear later
- Can follow procedures such as:
- Sentinel lymph node biopsy
- Axillary lymph node dissection
- Mastectomy or lumpectomy
Is it dangerous?
AWS is not dangerous, but it can:
- Limit movement
- Affect daily function
- Increase fear of using the arm
- Delay rehabilitation if not addressed
With the right guidance—especially physiotherapy—it is highly treatable and often resolves over time.
Frequently Asked Questions
AWS is a condition characterized by the formation of cord-like structures under the skin in the armpit, often resulting from breast cancer surgery.
Yes. AWS is a relatively common post-operative condition, especially when lymph nodes are removed. Many patients are not warned about it, which can make it feel unexpected and worrying .It is unfortunately a very under diagnosed condition.
It can improve over time, but:
- Without treatment, recovery may be slower and more uncomfortable
- Movement may remain limited longer than necessary
Early physiotherapy can speed up recovery and restore confidence in movement.
Gentle, guided movement is essential.
Avoiding movement can:
- Increase stiffness
- Reinforce fear-avoidance behaviours
- Prolong recovery
The key is graded, comfortable movement—not forcing through pain.
This is a very common concern.
That “snapping” sensation:
- Is usually the cord releasing tension
- Is not harmful
- Often leads to improved movement afterward
However, it should still be approached with controlled, supported exercises.
The cords create mechanical tension in the tissue.
In addition:
- The nervous system may become protective, increasing sensitivity
- This can amplify the feeling of tightness and discomfort
This is why combining physical and nervous system regulation approaches is so effective.
AWS and lymphoedema are different conditions, but both involve the lymphatic system.
- AWS does not directly cause lymphoedema
- However, both can occur after lymph node removal
Monitoring and appropriate care are important for both.
Yes—when done appropriately.
Techniques such as:
- Gentle soft tissue work
- Myofascial release
- Lymphatic drainage
can help reduce tension and improve mobility.
Recovery varies:
- Some improve within weeks
- Others may take several months
With consistent, guided rehabilitation, most people regain full or near-full function.
Yes.
With the right progression:
- You can return to full activity, including strength training
- Movement is part of recovery—not something to fear
Rebuilding trust in the body is a key part of healing.
You should seek support if:
- Movement is limited
- Pain is increasing
- You feel unsure or anxious about using your arm
- The cords are not improving
A physiotherapist experienced in breast cancer rehabilitation can provide safe, structured guidance.