Breast nodules may cause itchy skin, and the cause needs to be clarified after relevant tests. Breast nodules are mainly small lesions found by ultrasound and other imaging examinations. They may be normal breast tissue, or they may be hyperplasia, fibroadenoma, cyst, or verrucous hyperplasia nodules. Patients need to undergo a variety of tests such as mammograms and puncture biopsies to confirm the diagnosis. If there is itchy skin at the breast nodes, it may be due to nipple overflow from mastitis, which causes itchy skin, or it may be just normal breast swelling and itchiness during menstruation, which will recover after the period and does not require special treatment. Women should not worry too much when this happens. They can visit the breast surgery department of a regular hospital to clarify the cause of the itchiness and the cause of the nodules, and then carry out targeted treatment.