2 doctors weighed in:

How rare is it to have a simian crease on both palms and to not have down syndrome?

2 doctors weighed in
1 doctor agrees

In brief: See below

It occurs in about 1 of 30 babies.

In brief: See below

It occurs in about 1 of 30 babies.
Dr. Anthony LaBarbera
Dr. Anthony LaBarbera
Thank
Get help from a real doctor now
Dr. Jonathan Jassey
Board Certified, Pediatrics
13 years in practice
1M people helped
Continue
108,000 doctors available
Read more answers from doctors