Symptoms of non-lactating mastitis mainly include localized lumps, pain, nipple discharge, etc. It is recommended that the patient consult a doctor in time. Mastitis is an inflammation of the breast tissue with or without infection. Non-lactating mastitis can occur at any age, mostly in young women, and the clinical symptoms mainly include localized breast lumps, breast pain, nipple discharge, nipple inversion and so on. If you don’t get timely and effective treatment, the lesion can continue to develop, secondary acute infection can form abscess, pain can be aggravated, the lump can be touched fluctuating feeling, the patient can also be accompanied by chills, high fever and other systemic discomforts, and ultimately, the abscess can be ruptured to form a mammary fistula, sinus tracts or ulcers, which will remain unresolved for a long period of time.