Inclusion Criteria:

- Women age 18 or older

- Lymphedema in an arm as a result of surgery, chemotherapy, and/or radiation therapy
for breast cancer per breast surgeon or medical oncologist

- Patients must have received a clinical diagnosis of lymphedema for at least 6 months
and no more than 5 years. This timeframe allows ample time for any surgically related
non lymphedema swelling to subside by 6 months post-surgery, while a cap of 5 years
will capture the broadest range of cases, and has been used as a timeframe in several
studies including our pilot study.

- The affected arm must be >2cm larger than the unaffected arm. Differences of 2 cm or
more between the affected and unaffected arm are considered by experts to be
clinically significant. Each affected arm will be measured in two areas: upper arm
and forearm.

The larger of the two measures—upper arm or forearm— will be used for analysis.

- Classified as International Society of Lymphology (ISL) stage II or higher as
determined by an MSKCC Certified Lymphedema Therapist (CLT).

Exclusion Criteria:

- Bilateral lymphedema

- Previous acupuncture treatment for lymphedema

- Concurrent diuretic use

- History of primary (congenital) lymphedema

- Pregnant or planning to become pregnant during the course of the study

- Has an implanted electronically charged medical device