The yellow color of breast fluid is mostly due to the infection in the ducts of the breast, resulting in increased secretion formation. You can take oral antibiotic medication for the treatment of breast fluid, such as penicillin or cephalosporin antibiotics, and pay attention to breast cleanliness and hygiene, you can also apply local hot compresses to promote local blood circulation and improve the symptoms. If the effect of oral medication is not obvious, you can do a breast ductoscopy to determine the situation of breast overflow, and if necessary, you can cooperate with the breast duct irrigation treatment. If the breast fluid is bloody, you need to exclude breast malignant tumors, you can do ultrasound examination or take biopsy to send the pathology, after the diagnosis of malignant tumors, according to the specific type of pathology and timely chemotherapy drug treatment. Nipple discharge can also be seen in the milk ducts within the papilloma, drug treatment effect is not ideal, the need for surgical excision. Nipple overflow drug treatment, need to be based on the nature of the specific cause of overflow judgment.