Lymphedema is a condition where fluid builds up in body tissues because the lymphatic system cannot drain it properly.
The lymphatic system moves lymph fluid through the body and helps fight infection. When this system is damaged or does not develop normally, fluid can collect in one area and cause swelling.
The swelling most often appears in the arms or legs. At first it may be mild, but it can become heavier over time if not managed.
Lymphedema develops in two main ways.
• Primary – when a person is born with a lymphatic system that did not fully develop
• Secondary – when the lymphatic system is damaged by surgery, radiation therapy, infection, or injury
It is important to know that not all swelling is lymphedema. Many people experience fluid retention, also called edema, which can happen because of diet, medication, long periods of sitting or standing, or certain medical conditions.
Fluid retention often affects both legs and may improve with rest or movement. Lymphedema, however, is caused by problems in the lymphatic system and often affects one arm or one leg. The swelling usually does not go away on its own.
There is currently no permanent cure. Treatment focuses on controlling the swelling and preventing complications. Doctors may recommend compression garments, exercise, special massage therapy, and careful skin care to help move lymph fluid.
Because swelling can be mistaken for other problems, some people live with lymphedema for years before receiving a correct diagnosis.
How to Lower Your Risk
If you have had surgery or treatment involving lymph nodes, these habits may help reduce the risk:
• Avoid tight sleeves, straps, watches, or jewelry that press on the area
• Protect the skin from cuts, burns, and insect bites
• Keep the skin clean and moisturized
• Stay active and do gentle exercise to help fluid move
• Follow medical advice if compression garments are recommended
What to Do If You Notice Swelling
If one arm or leg begins to swell, feel heavy, or become tight, it should not be ignored.
• See a doctor or trained lymphedema therapist
• Do not wait for the swelling to disappear on its own
• Early care can prevent the condition from getting worse
Lymphedema is manageable, especially when it is recognized and treated early.
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