What can i do for lump on left breast on left side near armpit?

Physician Review: Palpable lumps in the breast may or may not be lymph nodes. Any palpable nodule in the breast should be reviewed by a physician who is experienced in breast review; surgeon, OB gyn, pcp. The provider should have access to high resolution ultrasound for an in depth review of the palpable area. Treatment options range from conservative observation to surgical excision, biopsy. Seek physician review.