so my son is 6 weeks old and when health visitor was out last week she said he has a y shaped crease at his bottom, and at his 6 week check I have to say to the doctor about it. I looked it up online and now wish I didn't as its saying it can be a sign for spina bifida, or spine or tube defects. has anyone had anything similar and has any advice feel like I'm going crazy until I see the doctor on Wednesday thanks