To solve the problem of breast milk nipple rupture, it is necessary to identify the cause and then intervene symptomatically, and there is no uniform treatment method. 1. Infant sucking: when breastfeeding, the mother’s nipple rupture, if it is caused by infant sucking, you can suspend breastfeeding on the affected side, keep the affected side of the breast clean and hygienic, but try to empty the affected side of the milk, which is conducive to the recovery of the ruptured nipple. 2. Bacterial or fungal infection: If the nipple cracking caused by baby sucking is accompanied by bacterial or fungal infection, it needs to be treated by medication. You need to disinfect the area with povidone-iodine first, and then apply antibiotic or antifungal ointment, such as mupirocin cream, fusidic acid cream, ofloxacin ointment and so on. However, you should not use the medication privately, you need to combine with the specific disease and use the medication under the guidance of the doctor. 3. Breast cancer: Nipple rupture during breastfeeding should also be considered to be related to breast cancer, which is a malignant cancer that can lead to nipple rupture. Breast cancer requires systematic treatment, such as surgery, radiotherapy, chemotherapy and targeted therapy. Daily self-examination of both breasts is needed, and if any abnormality is found, you need to go to the hospital for medical treatment in time.