There are several types of conditions where lumps can be found in the breast. Breast tissue itself is essentially a hard substance that can normally be grasped or pinched by hand. Therefore, sometimes the lumps you feel in the breast are just normal areas of breast tissue protrusion, which generally disappear after menstruation or after subsiding. You do not need to worry too much about breast lumps that appear during this special period. Another more common type of breast lump is fibroadenoma of the breast, which typically occurs in women of childbearing age between 20 and 39 years old. Another condition is cystic hyperplasia of the breast. This is more common in middle-aged women, often with several hard nodules of varying sizes on both breasts, with unclear borders, which can cause pain, especially more noticeable before menstruation. When it might be a breast disease, it is advisable for patients to visit a hospital and consult a doctor on how to proceed.