Breast puncture refers to the use of ordinary syringes or puncture needles to puncture lesions in the breast for therapeutic or diagnostic purposes, and can be divided into the following cases: 1, when suffering from acute mastitis or huge cysts in the breast, partial extraction of pus or cystic fluid through puncture of the breast abscess or cyst to reduce local tension and relieve clinical symptoms, while performing bacterial culture and other tests to clarify the causative organisms, and the targeted application of antibiotics In case of solid breast nodules, the nodules can be punctured by puncture needles, and some tissues can be taken for pathological examination to clarify the nature of the nodules and to guide the clinical specialist to carry out targeted treatment. In conclusion, although breast puncture is an invasive operation, it has important clinical significance in the diagnosis and treatment of breast diseases.