Lymphedema, once diagnosed, is a chronic condition and can be a lasting reminder of cancer. It is something that people then have to manage which is not always easy.
There are several books for cancer patients that will help you understand lymphedema. If you are scheduled for cancer surgery, treatment, etc., I would advise you to become aware of the possibility of lymphedema. There are several practical tips that will help you reduce the risk of lymphedema.
Once aware, you can take steps to be proactive.