Breast cancer involves uncontrolled growth of cells in the breasts, which is caused by a mutation in genes.

These gene mutations may be inherited from the individual’s parents or acquired throughout their lifetime.

The cells in the body are continually being renewed through a process of cell replication and death.

DNA provides the specific information about the cells so that they can be replicated and continue to grow. If there is a small error in the DNA of the cell, that cell will continue to replicate the error further.