The term triple-negative breast cancer means that the cancer cells do not have estrogen or progesterone receptors and does not make too much of the protein called HER2. ( therefore the cells test "negative" on all 3 tests.)

Triple-negative breast cancer has less treatment options available than other types of invasive breast cancer. The reason being the cancer cells do not have enough estrogen or progesterone receptors or HER2 protein for hormone therapy or targeted drugs to work. 

Treatment options are chemotherapy, radiation therapy, surgery mainly. But consulting clinician on time and starting the treatment is important. Regular follow up with doctor with lifestyle modifications and counselling will help. Consult an oncologist.

Hope our answer helps you.