The thyroid is a butterfly-shaped gland located in your neck that is in control of your metabolism. It is estimated that almost 60 million Americans have thyroid problems, but that only half of them are diagnosed. Whether a person’s thyroid is over or underactive, it can lead to extreme fatigue, unexplained weight changes, depression, anxiety, skin changes, hair loss, and bowel problems. Women with thyroid dysfunction may also have menstrual irregularities or problems with infertility. A physician diagnoses thyroid problems through a physical exam of the neck and with a simple blood test. Treatments for thyroid dysfunction may include medication or surgery. If you are experiencing any of these symptoms, see your physician for a check of your thyroid. To find a physician near you, call 877.CENTEGRA.