The early symptoms of mammary gland hyperplasia are cyclic swelling pain, which worsens before menstruation and diminishes or disappears after menstruation, with these being the typical symptoms. During a physical examination, nodular lumps of varying sizes can be felt within the breast, which are firm but not hard, and sometimes tender to the touch. Ultrasonography may not show any lumps, or mammography may reveal a cotton-wool-like appearance, which can diagnose mammary gland hyperplasia. However, it is crucial to be cautious of the potential coexistence of mammary gland hyperplasia and breast cancer. On one hand, patients with significant hyperplasia should be closely followed up, advised to return to the hospital every two to three months for re-examination. On the other hand, for patients with significant hyperplastic lumps or unclear boundaries in the thickening type of mammary glands, a biopsy is recommended.