Breast pains like pins and needles during breastfeeding are considered to be related to breast milk stagnation, breast hyperplasia, mastitis, herpes zoster and so on. 1. Milk stagnation: When the milk in the breast of a breastfeeding woman is not discharged smoothly, it will lead to a large amount of milk accumulation in the mammary gland. When a large amount of milk accumulates, it will cause some women to have a pain in their breasts like a pinch during breastfeeding. 2. Mammary hyperplasia: mainly related to endocrine dysfunction, the patient’s main symptoms are breast pain, breast lumps, nipple overflow and so on. When a breastfeeding woman suffers from breast hyperplasia, her breasts may hurt like pins and needles. 3. Mastitis: Mastitis can be induced by milk stasis, bacterial infection, and breast trauma. The disease will cause the patient’s breast redness, swelling, pain, elevated skin temperature, breast pain, etc. It can also be manifested as a pain in the breast like pins and needles during the breastfeeding period. 4. Herpes zoster: mainly due to chickenpox-herpes zoster virus infection, the patient will appear body fatigue, low fever, local skin blisters, skin burning, pain and other symptoms, can also be caused by part of the breastfeeding women breasts like pins and needles like a burst of pain. Breast pain like pins and needles during breastfeeding may also be due to breast trauma, breast tumors and other reasons, it is recommended to consult a doctor for examination in order to clarify the disease and follow the doctor’s instructions for treatment. The most important thing is to pay attention to breast care and to avoid foreign object friction and stimulation.