Lymphedema can occur right after surgery, or months or years later. This condition occurs when your underarm lymph nodes have been removed and your body can’t efficiently move the lymph fluid through that area. It occurs in the hand and arm on the side where your underarm lymph nodes were removed. Lymphedema may last fewer than 6 months (called acute lymphedema) or longer than 6 months (called chronic lymphedema ). An injury or strain to your arm can trigger the condition. Or it can be a temporary side effect of the surgery. To reduce your risk, avoid heavy lifting and protect your arm from injury. If treated, swelling from lymphedema can be managed. If not treated, swelling can become severe.

Symptoms to Watch for and Discuss With Your Doctor

It’s extremely important that you tell your doctor if you have any of the symptoms of lymphedema. Also, tell your doctor right away if you have signs or symptoms of infection, including swelling, redness, warmth, and sudden pain. Have your arm checked if you agree with one or more of the following statements:

• My hand or arm feels warm and looks red.   This may mean you have an infection.

• My arm or hand looks bigger.   You should measure your arm when it’s normal and then on a regular basis after that. If you notice an increase in size, it could be caused by lymphedema.

• When I press the skin on my arm or hand, it stays dimpled or indented.   This can mean that lymph fluid is collecting in your arm.

• My fingers feel stiff. I can’t move them like I used to.   This may occur because of swelling.

• I don’t feel hot or cold temperatures as much anymore. Lymphedema can interfere with your sense of touch.

Risk Factors to Discuss When Your Doctor

If you have any of these risk factors for lymphedema, let your doctor know so that you can watch for symptoms and take steps to prevent the condition.

• I had an infection in my surgery wound, or a drain or a catheter used for one of my treatments. Infection can trigger lymphedema.

• I had radiation therapy near where my underarm lymph nodes were removed. Experts have noticed a link between radiation treatment and lymphedema.

• I’m overweight or don’t eat nutritious food. Experts have noticed a connection between being overweight and getting lymphedema.

• I fly by airplane often. Changes in air pressure while flying can bring on lymphedema symptoms.

• I don’t move around a lot. If you have a sedentary lifestyle, lymph fluid is more likely to build up in your arm.

• I have diabetes, liver or kidney problems, or congestive heart failure. These are all conditions that can contribute to circulation problems, which can lead, in turn, to problems with your lymphatic system.