Squeezing the nipple with pus and bleeding symptoms, considering the situation of infection in the milk ducts, the nipple is the opening of the milk ducts, easy to breed bacteria, bacteria through the milk ducts retrograde into the mammary gland infections, infection symptoms gradually aggravate the formation of abscesses, you can do a diagnosis of the mammary ductoscopy, and then timely antimicrobial drug treatment, and at the same time to do the drug sensitivity test, according to the results of the symptomatic drug therapy, if necessary, through the nipple flushing the mammary ducts. If necessary, you can flush the milk ducts through the nipple, pay attention to the cleaning around the nipple and keep it dry. If abscess has been formed, make incision and drainage in time, so as to clear and drain thoroughly. Appearance of pus and blood flow from the nipple, try to do ultrasound examination, to determine the specific situation in the breast, and can not be ruled out plasma cell mastitis, breast cancer and other diseases caused by these symptoms, timely consultation to confirm the diagnosis and treatment.