I've read a few different opinions on nail ridges. eg., fungus, vitamin deficiency, heart/lung circulation problems etc. Years ago I read somewhere, I think, that thumbs reflect the brain and that horizontal ridges on thumbnails meant lack of circulation or nerve flow to/from the brain. I can't find the resource now. This condition comes and goes in severity. Anyone has input or resources on diagnosis for horizontal deep multiple ridges on thumbnails?

horizontal ridges on nails can mean you are hypothyroid see if you also have teeth indentions in your tounge

GOD Bless U! Janice


[This message has been edited by moderator2 (edited 10-14-2003).]

I read somewhere that those ridges can indicate iron deficiency.

WOW,
was just talking to my sis about nail ridges this morning. I have fibro and cfs. I noticed about a month ago, that I have ridges,not horizontally, but vertically, and only on the thumb nail. Each nail has only one ridge right in the center of the nail. Also its not just a ridge, its something you can feel and see right away. It goes up right into a bump almost, starting from the moon area. Does anyone know what causes this??
Jen
PS interesting topic