Hi everybody.

I was just doing my nails today and I noticed that I have very pronounced longitudinal ridges on all of my nails except for the thumbs and forefingers on each hand. My nails have always been very strong and healthy, so I like to keep them fairly long. I've noticed no other changes, but I remember hearing at some point that nail ridges could indicate a more serious problem, so I've been googling it...I also noticed that the white crescent shapes at the bases of my nails (I forget what they're called...) are absent in all but my thumbnails. One of the sites I came across mentioned thyroid disorders? If anyone has any suggestions of additional information, I would greatly appreciate it! Thank you!