Simple Ductal Dilatation 2mm is not serious, but it is important to be aware of other breast symptoms. Simplex ductal dilatation 2mm is not considered serious, but if ductal dilatation has been clearly present, subsequent symptoms such as nipple discharge or even ductal occupancy may occur. Therefore, we must pay close attention to our own breast condition, whether there is nipple discharge, pay attention to observe the nature of nipple discharge, color, time, etc. Do not panic after the appearance of nipple discharge, timely review can maximize without delaying the condition, and help to diagnose. Currently, there are mature treatments for breast diseases, such as incision and drainage of acute mastitis and anti-infection treatment, cystic hyperplasia of the breast or surgical excision of breast cancer, and the prognosis of the patients or the 5-year survival rate is on the rise, so if you have any discomfort, you should take active treatment.