How is there lump inside breast not painful to return a responsibility

There is a lump in the breast does not hurt to consider may be caused by breast fibroadenoma, or because of glandular lobular hyperplasia, do not rule out the possibility of breast cancer; should do a good job of breast care, and to the regular hospital gynecology oncology department to do breast molybdenum target, color ultrasound, breast cancer tumor markers and tissue biopsy and other examinations.