Breasts Milk-secreting, glandular organs on the chest of a woman; the human mammary gland. Videos Breast Self-Exam Self Video Needle Breast Biopsy Animation Brochures Breast Self‑Exam Detecting & Treating Breast Problems Office Handouts Breast Cancer Screening Breast Cancer Breast Lumps Breastfeeding Problems Breast Self Exam Instruction Card Fibrocystic Breasts Mastitis Medication Use While Breast-Feeding Web Links Breast Cancer Breast Lumps Breast Pain Mastitis Nipple Discharge Medications in Lactation