Breast disease is one of the common diseases in women, especially breast cancer occupies the first or second place in the incidence of malignant tumors in women, which is a great threat to women’s health. Therefore, women must pay attention to mammography during medical checkups in order to detect diseases early and get timely treatment. The common examination methods for smooth and tough spherical lumps in the breast are as follows. 1, breast ultrasound: breast ultrasound can show the breast lump and the surrounding blood vessels, according to the morphology of the lesion, blood flow and pulse Doppler spectrum analysis results, determine the nature of the lesion, effectively identify benign and malignant lesions in the breast. 2.Infrared mammography: It can diagnose all kinds of breast diseases such as mastitis, breast cysts and lobular hyperplasia quickly, accurately, painlessly and non-destructively, especially for the detection of breast cancer. Mammography is a physical examination of the breast, and screening of breast diseases, which allows early detection, early diagnosis and early treatment, and is of great importance in the treatment and prevention of breast diseases.