Lumps found in the breast without significant pain or itching are relatively common breast diseases in clinical practice and generally include the following causes: one condition is benign masses of the breast, including fibroids of the breast, ductal dilation of the breast, mastopexy, and lipomas of the breast. These benign lumps, which are not obviously painful or itchy, are often found unintentionally, mostly through physical examinations or ultrasound. In addition, some older women or women in their senior years are prone to breast cancer symptoms. Breast cancer manifests itself as a painless lump in the breast, which often occurs in the outer upper quadrant of the breast and has a high incidence and is more malignant once detected. When breast lumps appear, it is best to go to the hospital for a routine ultrasound or mammogram to rule out malignant lesions and to provide systematic and standardized treatment according to the specific cause.