Regardless of the texture of a lump you should always see your doctor immediately after finding a mass in your breast. A mammogram will probably be advised by your doctor. It is more than likely a benign breast lump but see a professional.
There are several common causes of benign breast lumps, including normal changes in breast tissue, breast infection or injury, and medicines that may cause lumps or breast pain.
Breast tissue changes during a woman's entire life. It is particularly sensitive to changing estrogen and progesterone hormone levels during the menstrual cycle.
Look up Fibroadenomas, Fibrocystic changes and simple cysts.