Is This Normal? · Surgery
The short answer on cording after breast surgery
It's probably cording, also called axillary web syndrome. It's a tight, rope-like band under the skin that starts in the armpit and can run down the inside of the arm, sometimes as far as the hand. It's common after lymph node surgery, it isn't dangerous in itself, and it usually gets better within a few months. Physical therapy can help you move more freely while it does. The real risk is that it makes you stop moving your arm, so tell your team and ask for a referral.
What to know about cording after breast surgery
- It has a name. Doctors call it axillary web syndrome, or AWS. Most people just say cording.
- It comes from surgery, not cancer. It follows surgery in the armpit, especially when lymph nodes are removed.
- It's more common than people are told. Study numbers vary a lot, and one small study found half of women had it at some point.
- Movement is the treatment. A physical therapist can stretch and work the cords and give you exercises to do at home.
- It usually goes away. Most cases settle within about three months, though some last longer or come back.
What is cording, or axillary web syndrome?
Cording is one or more tight bands under the skin. They usually start near the scar in your armpit and run down the inner arm to the inside of the elbow. Breastcancer.org notes they can reach the palm of the hand, and they can also run down the side of the chest instead of, or as well as, the arm. You might have one thick cord or several thin ones. Some people can see and feel them. Others feel only the pull.
It happens after surgery that removes lymph nodes from the armpit. That includes a sentinel node biopsy, where only a few nodes come out, and an axillary dissection, where many do. It can happen alongside a lumpectomy or a mastectomy. Cleveland Clinic puts it plainly: cording is related to the surgery near your armpit, not to the cancer itself.
What the cords are made of is still not settled. The leading idea is that surgery injures the connective tissue around lymph vessels, blood vessels and nerves, which then becomes inflamed and scarred, and that scarring hardens into cords. A 2009 report in the Canadian Journal of Surgery described tissue samples from four patients that showed small clots in lymph and vein channels. Breastcancer.org says more research is needed.
When does cording show up after breast surgery, and how common is it?
Sources describe the timing a little differently. Breastcancer.org says it usually appears several days to several weeks after surgery, and rarely many months later. Cleveland Clinic says symptoms often start about two weeks after surgery but may not appear for months, or even a few years. Many people first notice it when they lift their arm to shoulder height or overhead.
Nobody has a firm number for how many people get it. Breastcancer.org says the studies are few and mostly small. One study it cites found cording in about 20% of women after a sentinel node biopsy. After an axillary dissection, studies range from about 6% to 72%. A small study published in Physical Therapy in 2018 followed 36 women and found that half had cording at some point in the 18 months after surgery. Most experts think it's more likely after a bigger lymph node surgery, and the 2018 study found women with cording had more nodes removed.
What does cording feel like?
Tightness. A pulling feeling along the inner arm, often worse when you reach up or out.
A cord you can see or feel. Often most obvious when your arm is raised.
Sharp pain when you stretch. Cleveland Clinic describes shooting pain when raising or stretching the arm, plus tenderness in the arm or armpit.
Less movement. It can be hard to lift the arm above your shoulder or to fully straighten your elbow.
The timing can be especially awkward if you're about to have radiation, because the treatment position often means holding your arm overhead. If that's coming up, mention the cording to your radiation team early.
Is cording dangerous?
Not in itself. Cleveland Clinic says it isn't particularly dangerous. The problem is what happens if pain makes you hold your arm still. Avoiding movement can lead to more stiffness, and over time to tightened tissue around the shoulder or, in some people, a frozen shoulder. That's why the advice is to get help early rather than wait it out.
How is cording treated?
Physical therapy. This is the main treatment. Ask for a referral to a physical therapist who works with people after breast cancer surgery, ideally one who has treated cording before. Breastcancer.org advises not waiting to see whether it clears up on its own.
Stretching and range-of-motion exercises. Your therapist will show you gentle stretches and tell you how often to do them. Stretch only as advised, and don't force it. Pushing hard isn't the goal.
Manual therapy. The therapist gently stretches and works the tissue while your arm is held out. Sometimes a cord snaps or pops as it releases. Breastcancer.org says this usually doesn't hurt and often helps you move more. Loosening one spot can make another feel tighter for a while, because the cord is still attached in other places.
Moist heat, with care. Warm, moist heat can help, but both Breastcancer.org and Macmillan warn against using it for long stretches of time, because too much heat may raise the risk of lymphedema. Ask your therapist before you try it.
Pain relief. If pain stops you from stretching, ask your doctor whether an anti-inflammatory such as ibuprofen is OK for you.
Other options for stubborn cases. Macmillan says surgery may be considered if cording doesn't go away. A few surgeons have reported newer procedures for severe cording, but these are early reports, not standard care.
An honest note: the research on what speeds recovery is limited. The 2009 report said physical therapy improved how well people could use their arm in one study, but didn't change how long the cords lasted. Even so, every source we read recommends gentle, guided movement.
How long does cording last, and can it come back?
Most of the time, it fades. Breastcancer.org says cording usually resolves within a few therapy sessions or a few months. A 2016 review in Annals of Plastic Surgery reported symptoms lasting anywhere from one week to two years, with most cases resolved by about three months after surgery.
It can come back, though sources differ on how often. Macmillan calls it rare. Breastcancer.org says it may improve and then return, but is usually a one-time event. The 2018 study found something different in its small group: six women who had no signs at 12 weeks had cording again at 18 months, and some women had it at every check-up. So if it shows up again, even long after surgery, you'll know what it is.
Does cording mean you will get lymphedema?
Not necessarily. Lymphedema is long-term swelling in the arm, hand or chest caused by lymph fluid building up. Anyone who has had lymph nodes removed from the armpit has some risk, with or without cording.
Whether cording adds to that risk isn't known. Some experts see it as a sign that the lymph system was injured, and a 2006 international consensus statement listed it as a risk factor. But Breastcancer.org says there isn't enough research to confirm a link, and the 2018 study found no significant connection between cording and lymphedema in its small group.
Signs of lymphedema to watch for, according to the American Cancer Society, include swelling, fullness or heaviness in the arm, hand, chest or breast; sleeves, rings or a watch feeling tighter; and skin that feels thicker or looks different.
When to call your care team about cording or arm pain
- Cording pain that stops you from doing your arm exercises
- An arm or shoulder that's getting stiffer instead of looser
- Swelling, fullness or heaviness in your arm, hand or chest
- An arm, armpit or chest that's red, hot or newly swollen
- A fever, chills or other signs of infection
- Pain that's new, getting worse, or not helped by your usual medicine
If it feels like an emergency, call 911.
Questions to ask your care team about cording
- Is this cording, or could it be something else?
- Can you refer me to a physical therapist who has treated cording after breast surgery?
- Which stretches should I do, how often, and how far should I push?
- Is moist heat safe for me, and for how long at a time?
- Can I take an anti-inflammatory for the pain?
- Will this affect my position for radiation, and should we deal with it first?
- What's my lymphedema risk, and what signs should I watch for?
Recovering from surgery now? Read what happens during a mastectomy, or browse our resources.
Sources: Breastcancer.org, Axillary Web Syndrome (Cording) (updated October 2023); Cleveland Clinic, Cording (Axillary Web Syndrome) (reviewed May 2025); Macmillan Cancer Support, Cording after surgery for breast cancer (reviewed July 2023); American Cancer Society, Lymphedema; Koehler LA, Hunter DW, Blaes AH, Haddad TC, Function, Shoulder Motion, Pain, and Lymphedema in Breast Cancer With and Without Axillary Web Syndrome: An 18-Month Follow-Up, Physical Therapy (2018); Tilley A, Thomas-MacLean R, Kwan W, Lymphatic cording or axillary web syndrome after breast cancer surgery, Canadian Journal of Surgery (2009); Piper M, Guajardo I, Denkler K, Sbitany H, Axillary web syndrome: current understanding and new directions for treatment, Annals of Plastic Surgery (2016). This article is general information, written in Babette's own words, and is not a substitute for advice from your care team.
