['To determine if children with benign joint hypermobility (BJH) syndrome and chronic functional pain disorders have more autonomic dysfunction.', 'Retrospective chart review study of pediatric patients seen in the pediatric neurogastroenterology and autonomic clinic who underwent autonomic testing and had either a Beighton score of ≥6 and met Brighton criteria for BJH (with BJH) or a score of ≤2 (no BJH).', 'Twenty-one female subjects (10 without BJH) met inclusion criteria; 64% of BJH had diagnosis confirmed by genetics consultation. We evaluated for postural tachycardia syndrome, syncope, orthostatic intolerance, and orthostatic hypotension. None of these diagnoses, as well as baseline heart rate, peak heart rate in first 10\u2009minutes of head up tilt (P\u2009=\u2009.35 and P\u2009=\u2009.61, respectively), and sudomotor index (suggestive of autonomic neuropathy) (P\u2009=\u2009.58), showed differences between the groups. Age of onset of symptoms was also similar (P\u2009=\u2009.61) (BJH vs without BJH: median [range]:15.6 years [12.9-17.5] vs 15.4 years [11.1-18.2]). There was no difference between groups in complaints of migraine, chronic nausea, chronic fatigue, lightheadedness, dizziness, fainting >3 times/lifetime, delayed onset of sleep, irritable bowel syndrome, dyspepsia, abdominal migraine, functional abdominal pain, constipation, or fibromyalgia.'] Does benign Joint Hypermobility Minimally impact Autonomic Abnormalities in Pediatric Subjects with Chronic Functional Pain Disorders?