Post-transcripts formed by DNA also result in producing small RNAs which are quite recent discovered class of RNA known as microRNA (miR) that are very small ribonucleic acids which effect the function of messenger RNA. They have been proven to be involved in the normal functioning and development during embryonic life. However, over-expression of miRs are involved in several diseases of which cancers are of much concern. If the right miR is discovered for a specific disease it is predicted that anti-molecule therapy can be manufactured and the mutation that maybe taking place can be stopped before it causes unlimited damages and result in cancer of organs. One of the many cancers in woman, breast cancer is on the rise and is likely to increase in incidence due to the changing life style. We aim to identify miRs causing breast cancer and propose an anti-molecule formula to combat the deadly disease.