DCIS question: Does a core needle biopsy break the duct and cause the cancer to spread?

Talk with your breast surgeon and if at all possible take someone with you. You need to make clear that you are unhappy with the procedures to date. Rough handling by people who should know better is distressing but may not mean you are at greater risk. Cancer cells can spread a number of ways, or not.

If you are unhappy with your surgeon, talk to
your GP about how to seek a second opinion. It’s important to your successful treatment that you have confidence in your medical team. Best wishes.