Breast microcarcinoma with small infiltrates less than 1 mm may recur, but the chances are not great. Breast cancer is one of the common malignant tumors in women. Minor infiltration generally refers to a relatively small scope of tumor invasion, and the volume of malignant tumors is relatively small, which is usually an early stage tumor without proliferation and metastasis. If it can be detected, diagnosed and treated early, the tumor usually will not spread and recur, and the tumor cells can be removed by mainly adopting surgery-based treatment. In life, patients are recommended to have regular physical checkups to know the recent physical condition, besides, patients can have proper sports exercise, swimming, etc., which helps to improve the ability of resisting diseases. If there is any discomfort, it is recommended to go to the hospital in time.