Clinically, when a woman finds a breast lump on self-examination at home, the first purpose of seeking medical attention is to clarify whether it is breast cancer. The doctor will determine whether the lump is malignant or benign based on clinical symptoms and imaging. If a woman finds a breast lump on self-examination, she can pay attention to the size of the lump, its location, and its relationship to the surrounding tissue. Women who have not been instructed by medical professionals lack skills in examining their own breast lumps. Therefore, when taking a shower or at other times, you find a lump in your breast, don’t be nervous and go directly to the hospital to see a specialist, who will do a detailed physical examination and make a comprehensive judgment by combining with mammography, breast ultrasound, or breast nuclear magnetic resonance imaging (NMRI).