Breasts sometimes hurt like pins and needles, there are two main possibilities: First, cystic breast hyperplasia, prevalent in 30-50 years old women of childbearing age, clinical manifestations of breast pain with breast hyperplasia nodular changes, pain is mostly pins and needles, and aggravated before menstruation, after menstruation can be relieved. When the pain is obvious, it can be treated with oral Xiaojin Pills or Puanxuan. If there is persistent breast pain or progressive enlargement of the nodule, it is suspected that there is a possibility of malignant transformation of the nodule, and it should be treated with timely surgical excision. Secondly, breast cancer, common in middle-aged and old women patients, early only have breast ache, when the disease progresses to advanced stage, nipple inversion or orange peel sign can appear. If you have pins and needles pain in breast during breastfeeding, you should consider acute mastitis, which is characterized by redness and swelling of the breast with pins and needles pain, and a fluctuating lump can be detected in the breast when the scope of infection expands.