What is a Fine needle aspiration?

Fine needle aspiration (FNA) is a technique used by clinicians to determine if your thyroid lesion is abnormal. This technique is an office procedure typically done under ultrasound where the physician places a needle in any concerning lumps in your thyroid and takes a specimen for pathology. This test is very good for determining if your thyroid lesion needs to have surgery to remove it. Patients usually have no problems with the procedure and do not need to change their daily activities.