Lumps in breast with blood from the left nipple.

Get evaluation. Bloody or clear nipple discharge from one side is a possible sign of ductal cancer. Don't ignore this even though there are benign causes. Call your GYN or your family physician for an evaluation, so testing can be done.
Get checked. This needs to be evaluated ASAP. These are NOT reassuring findings.

Related Questions

My friend has stomach pains, nose bleeds, coughing up blood, fainting, bruises and small lumps on her chest. Can this be lung/breast Cancer?

Doctors appointment. I dont think we should answer if this a sign of cancer, but we should get your friend to her doctor for a full evaluation for causes of her symptons. Dont have her delay the visit.