Just squeezed left boob and a drop of old blood came out. is this normal? im 38. year old female. is this residual from breastfeeding? show i worry? no lumps just had mammogram in january.

Exam!: Bleeding from the nipples is often the result of some sort of trauma or friction & often not cause for great concern. This is also sometimes associated with breastfeeding. Other possible causes include infection, benign intraductal papillomas & breast cancer. Therefore I strongly suggest you have a complete exam at a medical clinic as soon as possible. I wish you well with your health!