When a woman has lumps in her breasts while weaning, it may be caused by breast fibroid, mastitis, breast hyperplasia, etc. General treatment, medication and surgery can be taken according to the different causes of the disease. 1. Breast fibroma: It is caused by hormone level disorder and can be manifested as weaning lumps. Slight breast fibroids can be treated with oral Chinese medicines, such as breast nourishing tablets and free pills, etc. If the fibroids continue to grow, traditional open surgery or minimally invasive rotary excision surgery is feasible for treatment. 2. Mastitis: mainly due to milk stagnation, bacteria retrograde invasion and cause, is a common cause of weaning lumps. It is recommended that the breast pump be used to suck out the milk thoroughly, in order to promote the smooth recovery of the blocked milk ducts at the hard knot; if the symptoms are more serious, oral cefradine, penicillin and other drugs for anti-inflammatory treatment. 3. Mammary gland hyperplasia: mostly related to bad habits, endocrine disorders, mental factors, etc., can be manifested as a lump when weaning. Hot towels can be applied to the breasts to promote blood circulation and reduce pain, and massage can also be performed to relieve symptoms; or oral lactic acid tablets, free pills and other medications. Weaning lumps may also have other causes, it is recommended to consult a doctor in time, under the guidance of the doctor for treatment. The above medications should be used under the guidance of a doctor.