Breast ultrasound showed 4 tiny cysts 3 with debri. doctor said all is benign she sees no cancer . she made it a birad 3 extremely worried should i be?

Probably not. : Birads 3 means probably benign, for a 6 mo. Follow-up. One cyst with debris may be questionable. Multiple suggests a benign process. While this sounds most likely benign and nothing to worry about, if you continue to have concerns, ask your md to get a second opinion, or a follow-up ultrasound in 3 mos. Biopsy would not appear to be indicated at the present time.