Breast cancer ductal invasive grade 2 is a pathological grading, and grades 1 and 2 belong to the grades of better differentiation and relatively lower risk. However, they should be viewed in conjunction with clinical staging. Ductal invasive grade 2 is a kind of pathological grading of breast cancer, which is relatively well differentiated and has a relatively low risk of recurrence, but the overall prognosis should be judged in conjunction with other factors such as clinical stage and patient’s age. Breast cancer may begin with a painless breast lump as the first symptom, and some patients may also have symptoms such as breast pain, nipple discharge and skin changes. Women are advised to perform breast self-examination on a regular basis, to look for symmetry of the nipples and lumps in the breasts, and to have regular medical checkups. It is recommended that women with grade 2 ductal invasive breast cancer should consult a doctor in time, complete the examination to clarify the clinical stage, and receive treatment according to the doctor’s instructions, so as to avoid delaying the condition.