The amount of time it takes for a breast duct tumor to become cancerous after surgery is variable and is usually determined by the patient’s condition and whether or not it is treated aggressively. Ductal breast tumor is a benign tumor that occurs in the epithelium of the breast ducts and has a very low possibility of becoming cancerous. Its occurrence is related to the elevated level of estrogen in the body, and the symptoms are self-conscious breast lumps or breast overflow. It is recommended to have timely medical checkups in daily life for early detection and treatment, which can reduce the risk of cancer, and surgical excision is generally preferred. If breast ductal tumor is not surgically removed, the time of cancer may be accelerated, the lesion metastasizes, and other organs will be endangered, and it will be more difficult to treat. Usually, breast ductal tumor is not easy to recur after surgical treatment to remove the lesion, and the prognosis is good. Patients need to have regular review after surgery, do a good job in daily care, need to have a light diet and relax their mood, and there is a possibility that the cancer will not occur all the time.