Ductal dilatation of the breast has a certain chance of self-healing, which is generally more likely in the early stage, but basically does not heal itself if it develops into the late stage. Dilated milk ducts are among the most common non-bacterial infectious inflammatory diseases during the non-lactation period and are benign. In the acute phase, there are mainly acute inflammatory manifestations, mostly presenting redness and swelling, followed by the subacute phase, formation of abscesses, partial rupture, pus flow, formation of scar contracture, manifesting as hard lumps, which can appear in one or both breasts. If the dilated breast ducts are detected at an early stage, the patient has a certain possibility of self-healing by keeping the areola clean, properly removing secretions, and strengthening the body, improving immunity, and eating foods rich in nutrients. However, if the abscess breaks down later and even forms a breast leak, it is more difficult to heal itself and must be cured by complete surgical removal of the diseased ducts. Women who experience self-healing of breast ducts should visit the breast surgery department in a timely manner and, under the guidance of a doctor, carry out appropriate treatment and life management, as well as undergo regular review.