An estimated 40 percent of those who have undergone treatment for breast cancer have lymphedema in their arms as a result of removed lymph nodes near the breast, under the armpit. But the data is patchy, at best, with no national registry or numbers of people who have the condition. In 2023, Auckland University Bioengineering researcher Dr Hayley Reynolds secured Marsden Grant funding in an effort to better understand the condition. Catherine Davies, who is also with the Bioengineering Institute, recently finished treatment for breast cancer and now has lymphoedema. Dr Reynolds and Catherine discuss the condition with RNZ’s Kathryn Ryan. Click here to read more.