**See a doctor promptly if your child has unexplained paleness, fatigue, or weakness, especially with thumb differences or limited joint movement present from birth.**
Aase syndrome is a rare condition involving anemia and differences in bone or joint development. These signs do not establish a diagnosis, so your child needs an examination and blood tests. Call 911 for severe trouble breathing or blue lips. If your child already has a diagnosis, keep scheduled blood tests and specialist visits, and report new symptoms promptly.
When a specialist is needed
Common questions
When should you see a doctor for Aase syndrome?
Arrange a medical visit promptly if your child has unexplained paleness, unusual tiredness, or weakness, especially with thumb differences or joints that do not fully straighten from birth. These findings need a clinician's assessment and do not prove Aase syndrome. Your child's doctor may order a complete blood count and refer you to a blood specialist or genetics team. Call 911 for severe breathing difficulty or blue lips. If your child already has Aase syndrome, report worsening symptoms promptly and keep scheduled follow-up visits even when your child feels well.