The next time a child presents with nocturnal enuresis and hypermobile joints, consider a diagnosis of the connective tissue disorder, Ehlers-Danlos syndrome, doctors say.

They report on the case of a 10-year-old boy who was referred for a paediatric nephrology consultation due to primary nocturnal enuresis.

The boy had achieved daytime bladder control at age three, but since then, had experienced almost nightly episodes of urinary incontinence, as well as urgency in the day.

When they saw him, he was in good physical health, but his mother pointed out that the boy had symptoms of joint hypermobility.