Description: Fine-needle aspiration Fine-needle aspiration During fine-needle aspiration, a special needle is inserted into a breast lump, and any fluid is removed aspirated. Ultrasound — a procedure that uses sound waves to create images of your breast on a monitor — might be used to help place the needle. After discussing your symptoms and health history, your doctor will do a breast exam and may order a diagnostic mammogram or a breast ultrasound. Based on the findings of the clinical breast exam and imaging tests, you may need fine-needle aspiration or a breast biopsy. Breast exam Your doctor will physically examine the breast lump and check for any other breast abnormalities.