Needle-like stabbing pain in the breast is mainly seen clinically in two diseases: 1, acute mastitis in breastfeeding women, especially about 1 month after delivery, caused by rupture of the nipple due to infant sucking on the nipple, followed by bacterial infection, which can be manifested as local needle-like pain, chills and fever in severe cases; treatment is mainly to empty the milk, oral antibiotic therapy if necessary, and if mastitis forms a breast abscess, usually If mastitis forms a breast abscess, it usually requires abscess excision surgery; 2. Cystic hyperplasia of the breast in young and middle-aged women, manifesting as breast swelling and pain at the beginning of the menstrual cycle, and even lumps, requires further ultrasound examination to make a clear diagnosis, and treatment is mainly based on relaxation, dredging the liver and Qi, and when symptoms are severe, oral treatment with prozac or breast disease can be considered.