If you are being treated for breast cancer, your doctor will schedule regular exams to help monitor your health and response to treatment. 

During a physical examination, your doctor may check your breast and lymph nodes for signs of breast cancer. He or she looks for breast lumps, hardening or thickening in the breast tissue, skin changes on your breast, changes in your nipples, and swollen lymph nodes in your armpit and above and below your collarbone. Your doctor will also feel your abdomen to check for enlarged liver and listen to your lungs.

You may have other tests like a blood test, chest x-ray, ultrasound, bone scan, CT or CAT scan, magnetic resonance imaging (MRI), positron emission tomography (PET) scan or heart scan.