After menopause, there is a hard lump on the top of the breast, considering that it is related to mammary hyperplasia, mammary fibroma and breast cancer. 1. Mammary gland hyperplasia: After menopause, some women can be induced by the imbalance of the ratio of estrogen and progesterone in the body. Typical symptoms of this disease include breast pain, nipple discharge, granular nodules and lumps of different shapes. Usually, the lumps can be hard or soft, or hard lumps. 2. Breast fibroma: the disease can cause some postmenopausal women to have a hard lump above the breast. The cause of the disease is still unclear, but it is considered to be related to female endocrine disorders and genetic variations of breast fibroblasts. Typical symptoms of patients are breast lumps, usually of different sizes, occasionally accompanied by pain, easy to push. 3. Breast cancer: the cause of the disease is not yet completely clear, and it may be related to heredity, long-term exposure to radiation and so on. If a post-menopausal woman suffers from breast cancer, it can be manifested as a hard lump above the breast, and is also prone to nipple discharge, axillary lymph node enlargement and other symptoms. Postmenopausal women with a hard lump above the breast should also consider other causes such as non-lactating mastitis. It is recommended that postmenopausal women with a hard lump above the breast should consult a doctor for timely examination, so that the disease can be clarified and then treated in accordance with the doctor’s instructions.