Breast cancer is diagnosed using a variety of tests and procedures, which include the following:   Breast exam: Your doctor will examine both of your breasts as well as the lymph nodes in your armpit to see whether everything is normal or if anything is wrong.   Mammography- An Xray of the breast is called a mammography. They are frequently used to detect breast cancer. If something abnormal is discovered during a screening mammography, your doctor will recommend additional treatment options.   Ultrasound- It is a technique that uses sound waves to create pictures of structures deep within the body. A new breast lump can be diagnosed as a solid mass or a fluid-filled cyst using ultrasound.   Taking a sample of breast cells for testing (biopsy)- A biopsy is the only means to confirm a breast cancer diagnosis. During a biopsy, your doctor extracts a core of tissue from the questionable location using a specialized needle instrument guided by an X-ray or another imaging test.  A tiny metal marker is frequently left at the spot within your breast so that subsequent imaging tests may easily identify the region.   Biopsy samples are submitted to a facility for testing, and specialists evaluate if the cells are malignant. It's also examined to see what kind of cells are involved in the breast cancer, how advanced it is, and whether the cancer cells contain hormone receptors or other receptors that might be harmful.   Breast magnetic resonance imaging (MRI): An MRI scanner that creates images of the inside of your breast using a strong magnetic fields and radio waves . A dye injection is given before to a breast MRI. An MRI does not employ radiation to produce pictures, unlike other forms of imaging procedures.