Granulomatous mastitis usually takes about 9 to 12 months to heal, but the exact time depends on the condition and the individual’s physique, so there is no generalization. Granulomatous mastitis is usually associated with discharge from the milk ducts, retrograde infection of the milk ducts, twisted milk ducts, etc. In the early stage, pain may appear in the breast, and in the later stage, a lump gradually forms, and the course of the disease is relatively long, usually around 9 to 12 months. If there is a combination of bacterial infection during the recovery process, the recovery time may be prolonged, but if the patient is in good physical condition and actively cooperates with the doctor in the relevant treatment, the recovery time may be shortened. Patients are advised to maintain a light, healthy diet and wear comfortable, breathable, and appropriately sized underwear to avoid pressure on the breasts. If there is any discomfort, consult a doctor promptly.