<P> Symbrachydactyly is a congenital abnormality, characterized by limb anomalies consisting of brachydactyly, cutaneous syndactyly and global hypoplasia of the hand or foot . In many cases, bones will be missing from the fingers and some fingers or toes may be missing altogether . The ends of the hand may have "nubbins"--small stumps where the finger would have developed, which may have tiny residual nails . </P> <P> Symbrachydactyly has been reported to appear without other combined limb anomalies and usually in one arm in 1 in 30,000 births to 1 in 40,000 births . </P> <P> The cause of symbrachydactyly is unknown . One possible cause might be an interruption of the blood supply to the developing arm at four to six weeks of pregnancy . There is no link to anything the mother did or did not do during pregnancy . There is also no increased risk of having another child with the same condition or that the child will pass the condition on to his or her children . </P> <P> In most cases, children born with symbrachydactyly are able to adapt to their physical limitations and experience a fully functional life with no treatment . Most children with this condition can use their hands well enough to do all the usual things children do . Possible treatment includes surgery or a routine of regularly stretching the fingers . </P>

What causes babies to be born without fingers
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