The white solid discharge from the nipple is milk or mammary secretion.
During breastfeeding, if the milk ducts are not open, there will be poor milk discharge and the milk will be concentrated, once the milk is concentrated, white solid like discharge will be discharged, which is concentrated milk.
If diseases occur in the breast, such as mastitis, breast hyperplasia, sebaceous cysts, etc., the fluid secreted by the mammary glands will increase. When these diseases occur, they may also lead to obstruction of the milk ducts, and the fluid secreted will be concentrated, which will lead to white solid-like discharge.
It is recommended that the patient go to the hospital, according to the patient’s condition, can improve the relevant examination, such as breast ultrasound, etc., combined with physical examination, usually can clarify the cause.