Arachnodactyly is a physical condition in which the fingers are long, slender, and curved, resembling a spider's legs.
Alternative NamesDolichostenomelia; Spider fingers; Achromacria
ConsiderationsLong, slender fingers can be normal and not associated with any medical problems. In some cases, however, spider fingers can be a sign of an underlying disease.
Common CausesNote: Having long, slender fingers may be normal.
Call your health care provider ifSome children are born with arachnodactyly, although it may develop over time. Consult with your health care provider during a routine examination if your child has long, slender fingers and you are concerned that an underlying condition may exist.
What to expect at your health care provider's officeThe health care provider will perform a physical exam and ask questions about the patient's medical history, including:
Diagnostic tests are usually not necessary unless a hereditary disorder is suspected.