Breasts have an aesthetic value to the body of a female and they have the ability to produce milk which is used for nourishing young babies. Breasts can develop tumors and cancers as any other part of the body. Cancer is uncontrolled growth of body cells. Your body has a natural mechanism to replace dead cells. When the internal program of the cell gets disturbed and it loses its control over division or multiplication, the condition is called cancerous. Cancers are of two types - Benign and Malignant. Benign cancers usually form tumors and stay at a particular place. They are comparatively less dangerous and are easy to treat. Malignant cancers have a tendency to spread across various tissue and are not easy to treat. Initial signs of breast cancer be feeling unusual and unnatural lumps in your breasts.