I was reading Martyn Hooper 's story on the PA society site and remembered why PA , amongst so many other possibilities, seemed possible some two years ago ( before my MS diagnosis). There is a checklist on the site, and you get 'extra points', if you not only have brittle nails but vertical ridges. Two years ago, I had what I thought was very weird, vertical ridges, just one on every other fingernail. Nowadays, I have several on each fingernail, and now appearing on my big toenails.
Looking on the Internet, they seem to be associated with rheumatoid athritis, thyroid things, or just getting older- which I am clear I have no indications of. Actually, that sounds daft, I am 42, but not as I understand it old enough for my nail beds to be receding to show the natural ridges of the nailbed. Mine are very clearly an abnormal keratin ridge, quite high above the rest of the quite normal, rounded nail with some 'beaded' patterns, like candle wax drips.
Do others with actual diagnosis of PA have these or is it just Martyn? No disrespect to him intended at all, but it is not clear whether this is just his personal experience, (and he may have other auto immune issues that this is associated with), or that this is actually an indicative symptom of PA. Any help appreciated.