Enthesitis Related Arthritis is a form of arthritis that begins in people under 16 years of age. Although it is more commonly diagnosed in boys, girls can also have ERA. Onset is usually between the ages of 9-12.
ERA is also sometimes simply called enthesitis. If a child has been diagnosed with enthesitis by a pediatric rheumatologist and requires long-term follow-up, verify with the doctor that the full name of the disease is ERA aka enthesitis-related juvenile idiopathic arthritis.