what are the chances of the breast lump being non cancerous
Because a lump can be a symptom of breast cancer, all persistent breast lumps should be evaluated by a physician. However, the majority of breast lumps (approximately 80%) are due to non-cancerous causes.igns that suggest a lump is less likely to be cancerous: 1  The lump is soft. 2  The lump is discrete; it is easily distinguishable. 3  The lump moves in the breast. 4  There are multiple breast lumps. 5  There is an identical lump in the opposite breast. 6  The lump disappears after the menstrual cycle.