Nipples can squeeze out white solid things, considering the following reasons:The first, the common cause is due to mastitis, do not eat spicy stimulating food, pay attention to the local skin clean, if the situation is not better, it is recommended to go to the hospital for examination. The second, due to endocrine adjustment, is a normal physiological phenomenon, do not think much. The third due to infection, the best way is to clean, the main nipple is often lifted outward, it is recommended to do regular b ultrasound examination.