Lymphoedema is a swelling that develops as a result of an impaired lymphatic system. The lymphoedema swelling may occur after having your lymph nodes removed as part of your cancer treatment, or if you have radiotherapy to an area with lymph nodes.
Lymphoedema can also occur if the lymphatic system did not develop properly or through damage or trauma. It can affect any part of the body but is most commonly seen in an arm or a leg. However, lymphoedema can occur in the breast, genitals and the neck.
If you would like more information on the lymphatic system in general and how it works please visit the Lymphoedema Support Network website (opens in new tab).
If you have had surgery to remove some lymph nodes or if you have had radiotherapy to your breast, armpit, neck, abdomen or pelvis you may be at risk of developing lymphoedema. Getting advice from an NHS service is essential to control symptoms in the early stages.
The British Lymphology Society has produced a fact sheet (opens in new tab) on what information advice and support should be provided to those at risk of lymphoedema.