FMD Chat is an international nonprofit organization that provides fibromuscular dysplasia support, education & advocacy for patients, family members, caregivers, and healthcare professionals. Fibromuscular dysplasia (FMD) is a complex disease that is most commonly seen in women, with systemic presentation that may include dissection or aneurysm most commonly in the renal and carotid arteries, low bone density, joint laxity, degenerative disease in the spine, migraine-like headaches, dizziness, and tinnitus. FMD may present at any age, but is more commonly discovered when the patient is between the ages of 20 and 60 years old. Patients may be asymptomatic and achieve diagnosis only upon an incidental finding, or patients may suffer serious and debilitating events, depending on the severity of their disease. FMD is considered a rare disease; however, it is also believed to be underdiagnosed. In the U.S., a disease is defined as rare if it is believed to affect fewer than 200,000 Americans, according to the National Organization of Rare Disorders. A disease or disorder is defined as rare in Europe when it affects fewer than 1 in 2,000. FMD has no cure and no specifically approved FDA treatment. Patient care currently focuses on managing symptoms, monitoring vascular involvement, and surgically repairing vascular damage. Visit fmdchat.blogspot.com, facebook.com/fmdchat or twitter.com/fmdchat for more information.