Recovery after sentinel node biopsy

Recovery after a sentinel node biopsy is usually quicker and easier than after a full armpit clearance, because only a few lymph nodes are removed through a small cut in the armpit. Most people have it at the same time as a lumpectomy or mastectomy, so how you feel overall often depends more on the breast operation. If the node biopsy is done with a lumpectomy, many people go home the same day or the next day. In the armpit you can expect some soreness, bruising, stiffness and a feeling of tightness for the first week or two. Numbness or tingling in the armpit or inner upper arm is common and often improves slowly. A drain is rarely needed for the node wound itself. If blue dye was used, your urine may turn blue or green for a day or two, and the skin of the breast may look bluish for weeks or months. Most people can do light daily activities within a few days and return to desk work within one to two weeks, depending on the breast surgery. Gentle arm and shoulder exercises help prevent stiffness. You will usually get the pathology result of the node within one to two weeks, which may take some waiting and worry. Problems such as infection, a fluid collection called a seroma, cording under the skin or, less often, arm swelling can occur, so it helps to know what to watch for.

Usually a quick recovery

Most people feel close to normal within a couple of weeks.

Some discomfort is expected

Soreness, stiffness and numbness in the armpit are common at first.

Keep the arm moving

Gentle exercises help you regain full shoulder movement.

Most recoveries go smoothly, but it helps to know what can be less straightforward.

The breast operation often sets the pace

If you also had a mastectomy or reconstruction, recovery will take longer than for the node biopsy alone.

Waiting for results is hard

The days before the node result can feel long. It is normal to feel anxious.

Some effects can last

A small numb area or occasional twinges may persist, and a few people develop arm swelling later.

What this page cannot tell you

It cannot tell you how your own recovery will go. Your surgical team knows your operation and can guide you.

Most discomfort is normal, but some signs need prompt attention.

Signs of infection

Increasing redness, heat, swelling, pus or a fever should be checked the same day.

A growing swelling

A soft swelling that keeps getting bigger or feels tight may be a seroma that needs draining.

Arm or hand changes

New swelling of the arm or hand, painful tight cords, or pain that is getting worse rather than better should be reported.