What are the reasons an electric breast pump cannot extract milk?

There may be several reasons why a breast pump fails to express milk. Improper operation is a common cause; for example, incorrect assembly or failure to follow the instructions can prevent effective milk expression. When milk production is low, it may be difficult to extract sufficient milk even with the use of a breast pump. Milk stasis or blocked milk ducts can also interfere with the proper function of the breast pump, in which case suction settings should be adjusted promptly or breast cleansing performed. Breast conditions such as mastitis may also affect normal milk secretion and expression. In summary, when encountering difficulties in expressing milk with a breast pump, it is important to carefully check whether the device is being used correctly and consider factors such as milk supply and breast health. If necessary, consult a healthcare professional or lactation specialist for advice.